Task: Program Execution
Input (English): 1, 13, ['T', '1489', '4861', '471', 'Y', '4403', '8093', '5461', 'd', 'U', '7055', 'f', 'K', 'd', '935', '6729', 'N', 'x', 'a']
Output (English): Kf7055Ud546180934403Y47148611489T