diff --git a/5/a.py b/5/a.py
new file mode 100644
index 0000000..8af4c45
--- /dev/null
+++ b/5/a.py
@@ -0,0 +1,25 @@
+with open("input", "r") as f:
+    lines = f.read().splitlines()
+
+ranges = []
+ingredients = []
+
+for line in lines:
+    if not line:
+        continue
+    if "-" in line:
+        start, end = line.split("-")
+        ranges.append((int(start), int(end)))
+    else:
+        ingredients.append(int(line))
+
+s = 0
+
+for ingredient in ingredients:
+    for range_ in ranges:
+        start, end = range_
+        if start <= ingredient <= end:
+            s += 1
+            break
+
+print(s)
diff --git a/5/b.py b/5/b.py
new file mode 100644
index 0000000..fc9f11a
--- /dev/null
+++ b/5/b.py
@@ -0,0 +1,9 @@
+with open("input", "r") as f:
+    lines = f.read().splitlines()
+
+ranges = []
+
+for line in lines:
+    if "-" in line:
+        start, end = line.split("-")
+        ranges.append((int(start), int(end)))
diff --git a/6/a.py b/6/a.py
new file mode 100644
index 0000000..5f387fa
--- /dev/null
+++ b/6/a.py
@@ -0,0 +1,21 @@
+from functools import reduce
+from operator import mul
+
+
+with open("input", "r") as f:
+    lines = f.read().splitlines()
+
+lines = [line.split() for line in lines]
+
+transposed = [[lines[j][i] for j in range(len(lines))] for i in range(len(lines[0]))]
+
+s = 0
+
+for line in transposed:
+    operands, operator = list(map(int, line[:-1])), line[-1]
+    if operator == "+":
+        s += sum(operands)
+    else:
+        s += reduce(mul, operands, 1)
+
+print(s)