Task: Program Execution
Input (English): 1, ['L', '7783', '6443', 'B', '3739', '1319', 'e', 'G', '3251', 'R', 'S', 't', 'Y', 'y', '825', '3633', 'b', '683', '4827', '1791', '927', '4827', '5875', '1081', '8441', '7363', 'M']
Output (English): L