solving part 2

day1/part2.py

@@ -0,0 +1,13 @@
+first_list = []
+second_list = []
+result = 0
+with open("part2_input.txt", "r") as file_input:
+    for row in file_input:
+        first_column, second_column = map(int, row.split("   "))
+        first_list.append(first_column)
+        second_list.append(second_column)
+
+for i in first_list:
+    result += i * second_list.count(i)
+
+print(result)

day1/test_part2_input.txt

@@ -0,0 +1,6 @@
+3   4
+4   3
+2   5
+1   3
+3   9
+3   3