diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..68bc17f
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,160 @@
+# Byte-compiled / optimized / DLL files
+__pycache__/
+*.py[cod]
+*$py.class
+
+# C extensions
+*.so
+
+# Distribution / packaging
+.Python
+build/
+develop-eggs/
+dist/
+downloads/
+eggs/
+.eggs/
+lib/
+lib64/
+parts/
+sdist/
+var/
+wheels/
+share/python-wheels/
+*.egg-info/
+.installed.cfg
+*.egg
+MANIFEST
+
+# PyInstaller
+#  Usually these files are written by a python script from a template
+#  before PyInstaller builds the exe, so as to inject date/other infos into it.
+*.manifest
+*.spec
+
+# Installer logs
+pip-log.txt
+pip-delete-this-directory.txt
+
+# Unit test / coverage reports
+htmlcov/
+.tox/
+.nox/
+.coverage
+.coverage.*
+.cache
+nosetests.xml
+coverage.xml
+*.cover
+*.py,cover
+.hypothesis/
+.pytest_cache/
+cover/
+
+# Translations
+*.mo
+*.pot
+
+# Django stuff:
+*.log
+local_settings.py
+db.sqlite3
+db.sqlite3-journal
+
+# Flask stuff:
+instance/
+.webassets-cache
+
+# Scrapy stuff:
+.scrapy
+
+# Sphinx documentation
+docs/_build/
+
+# PyBuilder
+.pybuilder/
+target/
+
+# Jupyter Notebook
+.ipynb_checkpoints
+
+# IPython
+profile_default/
+ipython_config.py
+
+# pyenv
+#   For a library or package, you might want to ignore these files since the code is
+#   intended to run in multiple environments; otherwise, check them in:
+# .python-version
+
+# pipenv
+#   According to pypa/pipenv#598, it is recommended to include Pipfile.lock in version control.
+#   However, in case of collaboration, if having platform-specific dependencies or dependencies
+#   having no cross-platform support, pipenv may install dependencies that don't work, or not
+#   install all needed dependencies.
+#Pipfile.lock
+
+# poetry
+#   Similar to Pipfile.lock, it is generally recommended to include poetry.lock in version control.
+#   This is especially recommended for binary packages to ensure reproducibility, and is more
+#   commonly ignored for libraries.
+#   https://python-poetry.org/docs/basic-usage/#commit-your-poetrylock-file-to-version-control
+#poetry.lock
+
+# pdm
+#   Similar to Pipfile.lock, it is generally recommended to include pdm.lock in version control.
+#pdm.lock
+#   pdm stores project-wide configurations in .pdm.toml, but it is recommended to not include it
+#   in version control.
+#   https://pdm.fming.dev/#use-with-ide
+.pdm.toml
+
+# PEP 582; used by e.g. github.com/David-OConnor/pyflow and github.com/pdm-project/pdm
+__pypackages__/
+
+# Celery stuff
+celerybeat-schedule
+celerybeat.pid
+
+# SageMath parsed files
+*.sage.py
+
+# Environments
+.env
+.venv
+env/
+venv/
+ENV/
+env.bak/
+venv.bak/
+
+# Spyder project settings
+.spyderproject
+.spyproject
+
+# Rope project settings
+.ropeproject
+
+# mkdocs documentation
+/site
+
+# mypy
+.mypy_cache/
+.dmypy.json
+dmypy.json
+
+# Pyre type checker
+.pyre/
+
+# pytype static type analyzer
+.pytype/
+
+# Cython debug symbols
+cython_debug/
+
+# PyCharm
+#  JetBrains specific template is maintained in a separate JetBrains.gitignore that can
+#  be found at https://github.com/github/gitignore/blob/main/Global/JetBrains.gitignore
+#  and can be added to the global gitignore or merged into this file.  For a more nuclear
+#  option (not recommended) you can uncomment the following to ignore the entire idea folder.
+#.idea/
diff --git a/.vscode/settings.json b/.vscode/settings.json
new file mode 100644
index 0000000..de288e1
--- /dev/null
+++ b/.vscode/settings.json
@@ -0,0 +1,3 @@
+{
+    "python.formatting.provider": "black"
+}
\ No newline at end of file
diff --git a/Pipfile b/Pipfile
new file mode 100644
index 0000000..6faaed7
--- /dev/null
+++ b/Pipfile
@@ -0,0 +1,13 @@
+[[source]]
+url = "https://pypi.org/simple"
+verify_ssl = true
+name = "pypi"
+
+[packages]
+pytest = "*"
+black = "*"
+
+[dev-packages]
+
+[requires]
+python_version = "3.9"
diff --git a/Pipfile.lock b/Pipfile.lock
new file mode 100644
index 0000000..87c3557
--- /dev/null
+++ b/Pipfile.lock
@@ -0,0 +1,167 @@
+{
+    "_meta": {
+        "hash": {
+            "sha256": "dd7064c5d3500819936bb144acb79666f7fe518572640b830be8dd2ccdae55b5"
+        },
+        "pipfile-spec": 6,
+        "requires": {
+            "python_version": "3.9"
+        },
+        "sources": [
+            {
+                "name": "pypi",
+                "url": "https://pypi.org/simple",
+                "verify_ssl": true
+            }
+        ]
+    },
+    "default": {
+        "atomicwrites": {
+            "hashes": [
+                "sha256:6d1784dea7c0c8d4a5172b6c620f40b6e4cbfdf96d783691f2e1302a7b88e197",
+                "sha256:ae70396ad1a434f9c7046fd2dd196fc04b12f9e91ffb859164193be8b6168a7a"
+            ],
+            "markers": "sys_platform == 'win32'",
+            "version": "==1.4.0"
+        },
+        "attrs": {
+            "hashes": [
+                "sha256:2d27e3784d7a565d36ab851fe94887c5eccd6a463168875832a1be79c82828b4",
+                "sha256:626ba8234211db98e869df76230a137c4c40a12d72445c45d5f5b716f076e2fd"
+            ],
+            "markers": "python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2, 3.3, 3.4'",
+            "version": "==21.4.0"
+        },
+        "black": {
+            "hashes": [
+                "sha256:06f9d8846f2340dfac80ceb20200ea5d1b3f181dd0556b47af4e8e0b24fa0a6b",
+                "sha256:10dbe6e6d2988049b4655b2b739f98785a884d4d6b85bc35133a8fb9a2233176",
+                "sha256:2497f9c2386572e28921fa8bec7be3e51de6801f7459dffd6e62492531c47e09",
+                "sha256:30d78ba6bf080eeaf0b7b875d924b15cd46fec5fd044ddfbad38c8ea9171043a",
+                "sha256:328efc0cc70ccb23429d6be184a15ce613f676bdfc85e5fe8ea2a9354b4e9015",
+                "sha256:35020b8886c022ced9282b51b5a875b6d1ab0c387b31a065b84db7c33085ca79",
+                "sha256:5795a0375eb87bfe902e80e0c8cfaedf8af4d49694d69161e5bd3206c18618bb",
+                "sha256:5891ef8abc06576985de8fa88e95ab70641de6c1fca97e2a15820a9b69e51b20",
+                "sha256:637a4014c63fbf42a692d22b55d8ad6968a946b4a6ebc385c5505d9625b6a464",
+                "sha256:67c8301ec94e3bcc8906740fe071391bce40a862b7be0b86fb5382beefecd968",
+                "sha256:6d2fc92002d44746d3e7db7cf9313cf4452f43e9ea77a2c939defce3b10b5c82",
+                "sha256:6ee227b696ca60dd1c507be80a6bc849a5a6ab57ac7352aad1ffec9e8b805f21",
+                "sha256:863714200ada56cbc366dc9ae5291ceb936573155f8bf8e9de92aef51f3ad0f0",
+                "sha256:9b542ced1ec0ceeff5b37d69838106a6348e60db7b8fdd245294dc1d26136265",
+                "sha256:a6342964b43a99dbc72f72812bf88cad8f0217ae9acb47c0d4f141a6416d2d7b",
+                "sha256:ad4efa5fad66b903b4a5f96d91461d90b9507a812b3c5de657d544215bb7877a",
+                "sha256:bc58025940a896d7e5356952228b68f793cf5fcb342be703c3a2669a1488cb72",
+                "sha256:cc1e1de68c8e5444e8f94c3670bb48a2beef0e91dddfd4fcc29595ebd90bb9ce",
+                "sha256:cee3e11161dde1b2a33a904b850b0899e0424cc331b7295f2a9698e79f9a69a0",
+                "sha256:e3556168e2e5c49629f7b0f377070240bd5511e45e25a4497bb0073d9dda776a",
+                "sha256:e8477ec6bbfe0312c128e74644ac8a02ca06bcdb8982d4ee06f209be28cdf163",
+                "sha256:ee8f1f7228cce7dffc2b464f07ce769f478968bfb3dd1254a4c2eeed84928aad",
+                "sha256:fd57160949179ec517d32ac2ac898b5f20d68ed1a9c977346efbac9c2f1e779d"
+            ],
+            "index": "pypi",
+            "version": "==22.3.0"
+        },
+        "click": {
+            "hashes": [
+                "sha256:24e1a4a9ec5bf6299411369b208c1df2188d9eb8d916302fe6bf03faed227f1e",
+                "sha256:479707fe14d9ec9a0757618b7a100a0ae4c4e236fac5b7f80ca68028141a1a72"
+            ],
+            "markers": "python_version >= '3.7'",
+            "version": "==8.1.2"
+        },
+        "colorama": {
+            "hashes": [
+                "sha256:5941b2b48a20143d2267e95b1c2a7603ce057ee39fd88e7329b0c292aa16869b",
+                "sha256:9f47eda37229f68eee03b24b9748937c7dc3868f906e8ba69fbcbdd3bc5dc3e2"
+            ],
+            "markers": "sys_platform == 'win32'",
+            "version": "==0.4.4"
+        },
+        "iniconfig": {
+            "hashes": [
+                "sha256:011e24c64b7f47f6ebd835bb12a743f2fbe9a26d4cecaa7f53bc4f35ee9da8b3",
+                "sha256:bc3af051d7d14b2ee5ef9969666def0cd1a000e121eaea580d4a313df4b37f32"
+            ],
+            "version": "==1.1.1"
+        },
+        "mypy-extensions": {
+            "hashes": [
+                "sha256:090fedd75945a69ae91ce1303b5824f428daf5a028d2f6ab8a299250a846f15d",
+                "sha256:2d82818f5bb3e369420cb3c4060a7970edba416647068eb4c5343488a6c604a8"
+            ],
+            "version": "==0.4.3"
+        },
+        "packaging": {
+            "hashes": [
+                "sha256:dd47c42927d89ab911e606518907cc2d3a1f38bbd026385970643f9c5b8ecfeb",
+                "sha256:ef103e05f519cdc783ae24ea4e2e0f508a9c99b2d4969652eed6a2e1ea5bd522"
+            ],
+            "markers": "python_version >= '3.6'",
+            "version": "==21.3"
+        },
+        "pathspec": {
+            "hashes": [
+                "sha256:7d15c4ddb0b5c802d161efc417ec1a2558ea2653c2e8ad9c19098201dc1c993a",
+                "sha256:e564499435a2673d586f6b2130bb5b95f04a3ba06f81b8f895b651a3c76aabb1"
+            ],
+            "version": "==0.9.0"
+        },
+        "platformdirs": {
+            "hashes": [
+                "sha256:027d8e83a2d7de06bbac4e5ef7e023c02b863d7ea5d079477e722bb41ab25788",
+                "sha256:58c8abb07dcb441e6ee4b11d8df0ac856038f944ab98b7be6b27b2a3c7feef19"
+            ],
+            "markers": "python_version >= '3.7'",
+            "version": "==2.5.2"
+        },
+        "pluggy": {
+            "hashes": [
+                "sha256:4224373bacce55f955a878bf9cfa763c1e360858e330072059e10bad68531159",
+                "sha256:74134bbf457f031a36d68416e1509f34bd5ccc019f0bcc952c7b909d06b37bd3"
+            ],
+            "markers": "python_version >= '3.6'",
+            "version": "==1.0.0"
+        },
+        "py": {
+            "hashes": [
+                "sha256:51c75c4126074b472f746a24399ad32f6053d1b34b68d2fa41e558e6f4a98719",
+                "sha256:607c53218732647dff4acdfcd50cb62615cedf612e72d1724fb1a0cc6405b378"
+            ],
+            "markers": "python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2, 3.3, 3.4'",
+            "version": "==1.11.0"
+        },
+        "pyparsing": {
+            "hashes": [
+                "sha256:7bf433498c016c4314268d95df76c81b842a4cb2b276fa3312cfb1e1d85f6954",
+                "sha256:ef7b523f6356f763771559412c0d7134753f037822dad1b16945b7b846f7ad06"
+            ],
+            "markers": "python_full_version >= '3.6.8'",
+            "version": "==3.0.8"
+        },
+        "pytest": {
+            "hashes": [
+                "sha256:841132caef6b1ad17a9afde46dc4f6cfa59a05f9555aae5151f73bdf2820ca63",
+                "sha256:92f723789a8fdd7180b6b06483874feca4c48a5c76968e03bb3e7f806a1869ea"
+            ],
+            "index": "pypi",
+            "version": "==7.1.1"
+        },
+        "tomli": {
+            "hashes": [
+                "sha256:939de3e7a6161af0c887ef91b7d41a53e7c5a1ca976325f429cb46ea9bc30ecc",
+                "sha256:de526c12914f0c550d15924c62d72abc48d6fe7364aa87328337a31007fe8a4f"
+            ],
+            "markers": "python_version >= '3.7'",
+            "version": "==2.0.1"
+        },
+        "typing-extensions": {
+            "hashes": [
+                "sha256:6657594ee297170d19f67d55c05852a874e7eb634f4f753dbd667855e07c1708",
+                "sha256:f1c24655a0da0d1b67f07e17a5e6b2a105894e6824b92096378bb3668ef02376"
+            ],
+            "markers": "python_version < '3.10'",
+            "version": "==4.2.0"
+        }
+    },
+    "develop": {}
+}
diff --git a/advent.py b/advent.py
new file mode 100644
index 0000000..56ac881
--- /dev/null
+++ b/advent.py
@@ -0,0 +1,6 @@
+from days import *
+import pytest
+
+
+if __name__ == "__main__":
+    pytest.main()
diff --git a/days/__init__.py b/days/__init__.py
new file mode 100644
index 0000000..8b13789
--- /dev/null
+++ b/days/__init__.py
@@ -0,0 +1 @@
+
diff --git a/days/input/day01_input b/days/input/day01_input
new file mode 100644
index 0000000..0bb977d
--- /dev/null
+++ b/days/input/day01_input
@@ -0,0 +1,6 @@
+1721
+979
+366
+299
+675
+1456
\ No newline at end of file
diff --git a/days/test_day01.py b/days/test_day01.py
new file mode 100644
index 0000000..9a83a1a
--- /dev/null
+++ b/days/test_day01.py
@@ -0,0 +1,22 @@
+import os
+import itertools
+
+inputfile = os.path.join(os.path.dirname(__file__), "input/day01_input")
+with open(inputfile) as file:
+    lines = [int(line.strip()) for line in file]
+
+
+def test_day1a():
+    list_permutations = itertools.combinations(lines, 2)
+    for (a, b) in list_permutations:
+        if a + b == 2020:
+            result = a * b
+    assert result == 514579
+
+
+def test_day1b():
+    list_permutations = itertools.combinations(lines, 3)
+    for (a, b, c) in list_permutations:
+        if a + b + c == 2020:
+            result = a * b * c
+    assert result == 241861950
diff --git a/pytest.ini b/pytest.ini
new file mode 100644
index 0000000..eea2c18
--- /dev/null
+++ b/pytest.ini
@@ -0,0 +1 @@
+[pytest]