Task: Program Execution
Input (English): 15, 19, ['s', 'X', '83', 'r', '655', 'E', 'i', '9509', '7963', '9709', '7507', 'x', '2841', 'i', 'h', '773', 'y', '9095', 'I', 'E', 'f', 'f']
Output (English): h773y9095I