Task: Program Execution
Input (English): 4, 15, ['d', 'B', 'e', 'H', 'y', '3211', 'i', '3683', '9705', '4931', 'v', '5053', 'R', 'U', '7435', '2883', '6659', '7893']
Output (English): Hy3211i368397054931v5053RU7435