diff --git a/04/input.txt b/04/input.txt
new file mode 100644
index 0000000..08d9085
--- /dev/null
+++ b/04/input.txt
@@ -0,0 +1,601 @@
+91,17,64,45,8,13,47,19,52,68,63,76,82,44,28,56,37,2,78,48,32,58,72,53,9,85,77,89,36,22,49,86,51,99,6,92,80,87,7,25,31,66,84,4,98,67,46,61,59,79,0,3,38,27,23,95,20,35,14,30,26,33,42,93,12,57,11,54,50,75,90,41,88,96,40,81,24,94,18,39,70,34,21,55,5,29,71,83,1,60,74,69,10,62,43,73,97,65,15,16
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\ No newline at end of file
diff --git a/04/solution_1.py b/04/solution_1.py
new file mode 100755
index 0000000..846390f
--- /dev/null
+++ b/04/solution_1.py
@@ -0,0 +1,29 @@
+#!/usr/bin/env python3
+with open("input.txt", "r") as _input:
+    seq = [int(n) for n in _input.readline().rstrip().split(",")]
+    boards = []
+
+    for line in _input.readlines():
+        if len(line.rstrip()) == 0:
+            boards.append([])
+        else:
+            boards[-1].append([int(n) for n in line.split()])
+
+for num in seq:
+    for board in boards:
+        def calcscore():
+            for row in board:
+                if num in row:
+                    row[row.index(num)] = False
+                if row == [False] * len(row):
+                    return True
+            for column in zip(*board[::-1]):
+                if list(column) == [False] * len(column):
+                    return True
+
+        if (calcscore()):
+            score = num * sum([sum(row) for row in board])
+
+    if "score" in locals():
+        print("Answer:", score)
+        break
diff --git a/04/solution_2.py b/04/solution_2.py
new file mode 100755
index 0000000..698b475
--- /dev/null
+++ b/04/solution_2.py
@@ -0,0 +1,28 @@
+#!/usr/bin/env python3
+with open("input.txt", "r") as _input:
+    seq = [int(n) for n in _input.readline().rstrip().split(",")]
+    boards = []
+
+    for line in _input.readlines():
+        if len(line.rstrip()) == 0:
+            boards.append([])
+        else:
+            boards[-1].append([int(n) for n in line.split()])
+
+for num in seq:
+    for board in boards:
+        def calcscore():
+            for row in board:
+                if num in row:
+                    row[row.index(num)] = False
+                if row == [False] * len(row):
+                    return True
+            for column in zip(*board[::-1]):
+                if list(column) == [False] * len(column):
+                    return True
+
+        if (calcscore()):
+            score = num * sum([sum(row) for row in board])
+            board.clear()
+
+print("Answer:", score)