有13顆外觀、大小相同的紅色小球，其中12顆的重量相同；另1顆的重量與其他12顆的不一樣，而且不知道重量是比較輕還是比較重。現在給你一個天秤，再給你3次使用天秤的機會，請找出那顆不同的球。
解答(想要解密請聯絡作者)：
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QWBLbcgNj64Ige_sTSkCh8TgvvA0AKo-eXAjeehND6LQfdMMXSken_i86vTkDK7aZXT77cghr6IA5evINRkOK_QMZvispKJSdVC77di9O4aUZde8RRkiD8DwdtSkjKoG2Xyn_cyFn654Bd9sSSF-N_iEWsik6JomUWBLYcjBq55goeuYARkiD9gceviwwKr6oUxHncCdr6I8Md8k_Rm6I_yM9vxQoKJSdXyjcdi9NBPo7ElB2L0_mkh519jlLdYL_FzO-LSIqt6pTM_t6E0Pqohh6-z1KTon-IRa9BSwqkrFULvtyGkvpgz930xhLd4fwGhS8HTkplrZULvhyGkvpgz930xhKSqfwGhS-LQIgspVfKvxxF1vrlhR1xTBKTon-IRa9BSwplrZTLs9zN2DnnjZ95hlJQavxKgW_EyIqhrBcBvJyA2PqoTt09jRIaKr_IhCyPTcmgp1fKtFxEUnpgz995jRMT4_2BzC9ICsqqrBcNf5wLXHojyd10RVJfI_2Bx6_GgArtbxcDf98LlzrnA100xVKU6b-IRa9ICsqhrxYEthyA2PqoTJ09jRKQJj2BzO9ICsqnJVULvhyGkvpgz919jlLd47wGhS1KSMnhp5ULvtyGkvrizd95jdIeor-IRa9OQMrtJVSM9xxEUnpvh9x2hdHRKv8AiGyNA4gspVeE91yP0zrqQp0wjpAc6_-Dha9DysoorVfKtN8DknhpSB24hhKdr3xGjO9Dysnp6hULtZxEVLpnBx19jlLdYL_FzO9Mgspl5tdG9pwEVjrkQt1wBFKTon-KxG-LCQmiZRSFdV9J0jprD930jBAc4LxMDeyPQIqj55cCN5zOXPhpRp17xFAc4L8MhWyKSwnsoxdGsx9E0znnjZ1wBFGTa3_LSu-LQIolJ1ULvtyGkvpiTh0wjpKTon-IRa1KTQqgZRfK9F6E0Pmkh532xJIVYr_LS61KQ0ou51ULtZwJkjmvzp6_RVKYJH2BzC9ICso