diff --git a/2023/4/4_2.py b/2023/4/4_2.py
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+++ b/2023/4/4_2.py
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+#!/usr/bin/env python
+# 2023 - Advent Of Code 4 - part 2
+
+# file = 'input_example.txt'
+file = 'input.txt'
+
+
+accum = 0
+# pylint: disable=consider-using-with
+input_lines = [line.strip('\n') for line in open(file, encoding="utf-8")]
+
+copies = [1] * len(input_lines)
+for line in input_lines:
+    card = line.split(':')
+    card_num = int(card[0][4:])
+    winning, got = card[1].split('|')
+    winning_num = [x for x in winning.split(' ') if x != '']
+    got_num = [x for x in got.split(' ') if x != '']
+
+    card_score = 0
+    for num in got_num:
+        if num in winning_num:
+            card_score += 1
+    print(f'{card_num}: {card_score}')
+    for score in range(0, card_score):
+        copies[card_num+score] += copies[card_num-1]
+    # print(copies)
+
+print(f"sum: {sum(copies)}")