Task: Program Execution
Input (English): 6, ['519', 'C', 'h', 'S', '6897', '3273', '607', 'o', '765', '7507', 'J', '8647', '1437', 'D', '9229', '6577', '1389', '8455', '7173', 'J', 'i', 'X', '7605', 'F', '6943', '593', '6041', '7771', '4999', 'm', 'f', 'E', '465', '1575', 'K']
Output (English): 519, 607, 1437, 7173, 6943, f