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2023 沙东省队民间互唱由 ShanLunjiaJian 主办，欢迎大家投题！

Time Limit: 2 s Memory Limit: 512 MB Total points: 100

# 21771. 给你一颗枪弹！

The problem was used in the following contest:

2023 山东省队互唱 Round 1