Task: Program Execution
Input (English): 15, ['9611', 'F', '3085', 'r', 'R', 'z', '667', 'C', '4923', 'U', 'Q', '1887', '5881', 'C', '7647', '4853', '2755', 'b', 'v', '7331', '8175', '8473', '323', 'r', '1325', 'U', 'X', '5961', 'P', 'H', 'z', '5821', 'C', '5851', 'r', '4121', '1287', '3231', 'Q', '57', '6627', '1975']
Output (English): 9611, 4853, z