diff --git a/11/main.py b/11/main.py
new file mode 100644
index 0000000..09ecf9c
--- /dev/null
+++ b/11/main.py
@@ -0,0 +1,97 @@
+import os
+import math
+import numpy as np
+
+
+# Find the highest product of four adjacent numbers in the following grid
+
+# 08 02 22 97 38 15 00 40 00 75 04 05 07 78 52 12 50 77 91 08
+# 49 49 99 40 17 81 18 57 60 87 17 40 98 43 69 48 04 56 62 00
+# 81 49 31 73 55 79 14 29 93 71 40 67 53 88 30 03 49 13 36 65
+# 52 70 95 23 04 60 11 42 69 24 68 56 01 32 56 71 37 02 36 91
+# 22 31 16 71 51 67 63 89 41 92 36 54 22 40 40 28 66 33 13 80
+# 24 47 32 60 99 03 45 02 44 75 33 53 78 36 84 20 35 17 12 50
+# 32 98 81 28 64 23 67 10 26 38 40 67 59 54 70 66 18 38 64 70
+# 67 26 20 68 02 62 12 20 95 63 94 39 63 08 40 91 66 49 94 21
+# 24 55 58 05 66 73 99 26 97 17 78 78 96 83 14 88 34 89 63 72
+# 21 36 23 09 75 00 76 44 20 45 35 14 00 61 33 97 34 31 33 95
+# 78 17 53 28 22 75 31 67 15 94 03 80 04 62 16 14 09 53 56 92
+# 16 39 05 42 96 35 31 47 55 58 88 24 00 17 54 24 36 29 85 57
+# 86 56 00 48 35 71 89 07 05 44 44 37 44 60 21 58 51 54 17 58
+# 19 80 81 68 05 94 47 69 28 73 92 13 86 52 17 77 04 89 55 40
+# 04 52 08 83 97 35 99 16 07 97 57 32 16 26 26 79 33 27 98 66
+# 88 36 68 87 57 62 20 72 03 46 33 67 46 55 12 32 63 93 53 69
+# 04 42 16 73 38 25 39 11 24 94 72 18 08 46 29 32 40 62 76 36
+# 20 69 36 41 72 30 23 88 34 62 99 69 82 67 59 85 74 04 36 16
+# 20 73 35 29 78 31 90 01 74 31 49 71 48 86 81 16 23 57 05 54
+# 01 70 54 71 83 51 54 69 16 92 33 48 61 43 52 01 89 19 67 48
+
+
+
+
+def product(xs):
+    res = 1
+
+    for x in xs:
+        res = res * x
+
+    return res
+
+
+
+
+def main():
+    print("Hello, this is Patrick")
+
+    ss = """
+08 02 22 97 38 15 00 40 00 75 04 05 07 78 52 12 50 77 91 08
+49 49 99 40 17 81 18 57 60 87 17 40 98 43 69 48 04 56 62 00
+81 49 31 73 55 79 14 29 93 71 40 67 53 88 30 03 49 13 36 65
+52 70 95 23 04 60 11 42 69 24 68 56 01 32 56 71 37 02 36 91
+22 31 16 71 51 67 63 89 41 92 36 54 22 40 40 28 66 33 13 80
+24 47 32 60 99 03 45 02 44 75 33 53 78 36 84 20 35 17 12 50
+32 98 81 28 64 23 67 10 26 38 40 67 59 54 70 66 18 38 64 70
+67 26 20 68 02 62 12 20 95 63 94 39 63 08 40 91 66 49 94 21
+24 55 58 05 66 73 99 26 97 17 78 78 96 83 14 88 34 89 63 72
+21 36 23 09 75 00 76 44 20 45 35 14 00 61 33 97 34 31 33 95
+78 17 53 28 22 75 31 67 15 94 03 80 04 62 16 14 09 53 56 92
+16 39 05 42 96 35 31 47 55 58 88 24 00 17 54 24 36 29 85 57
+86 56 00 48 35 71 89 07 05 44 44 37 44 60 21 58 51 54 17 58
+19 80 81 68 05 94 47 69 28 73 92 13 86 52 17 77 04 89 55 40
+04 52 08 83 97 35 99 16 07 97 57 32 16 26 26 79 33 27 98 66
+88 36 68 87 57 62 20 72 03 46 33 67 46 55 12 32 63 93 53 69
+04 42 16 73 38 25 39 11 24 94 72 18 08 46 29 32 40 62 76 36
+20 69 36 41 72 30 23 88 34 62 99 69 82 67 59 85 74 04 36 16
+20 73 35 29 78 31 90 01 74 31 49 71 48 86 81 16 23 57 05 54
+01 70 54 71 83 51 54 69 16 92 33 48 61 43 52 01 89 19 67 48
+"""
+
+    nss = list(map(lambda s: s.split(" "), ss.strip().split("\n")))
+
+    xss = []
+    for ns in nss:
+        xs = []
+        for n in ns:
+            xs.append(int(n))
+        xss.append(xs)
+
+    ps = []
+    for xs in range(len(xss)):
+        for x in range(len(xss[xs])):
+            if xs < len(xss) - 3:
+                p = [xss[xs + a][x] for a in range(4)]
+                ps.append(product(p))
+            if x < len(xss[xs]) - 3:
+                p = xss[xs][x : x + 4]
+                ps.append(product(p))
+            if xs < len(xss) - 3 and x < len(xss[xs]) - 3:
+                p = [xss[xs + a][x + a] for a in range(4)]
+                ps.append(product(p))
+            if xs > 2 and x < len(xss[xs]) - 3:
+                p = [xss[xs - a][x + a] for a in range(4)]
+                ps.append(product(p))
+
+    print(max(ps))
+
+if __name__ == "__main__":
+    main()
\ No newline at end of file