 <translate> Give the step-by-step reasoning process and then the final answer. Shane prepares sandwiches for the Boy Scouts. He buys 2 packages of sliced bread containing 20 slices each, and he also buys 2 packages of sliced ham containing 8 slices each. Shane will make as many sandwiches as he can according to the ham he has. How many slices of bread will he have leftover? <yor> Ṣàlàyé bí wọ́n ṣe ń ronú lẹ́ẹ̀kan-lẹ́ẹ̀kan, kó o sì wá sọ ìdáhùn tó o máa fún wọn. Shane máa ń se búrẹ́dì fún àwọn ọmọ ẹgbẹ́ Scouts. Ó ra búrẹ́dì méjì tí wọ́n gé sí wẹ́wẹ́, èyí tó ní ogún gẹ́ẹ́ nínú, ó sì tún ra ẹran ẹlẹdẹ méjì tí wọ́n gé sí wẹ́wẹ́, èyí tó ní mẹ́jọ gẹ́ẹ́ nínú. Shane á ṣe gbogbo búrẹ́dì tó bá lè ṣe níbàámu pẹ̀lú ẹran ẹlẹdẹ tó ní. Báwo ni oúnjẹ tó máa jẹ á ṣe pọ̀ tó? 