Task: Program Execution
Input (English): 2, 19, ['5231', 'X', '5781', '7999', 'l', 'z', '8891', '1835', '9963', 'S', 's', '2537', 'o', 'm', '7239', 'y', '3803', '3765', '1393', '8397', 'U', 'n', 'I']
Output (English): 139337653803y7239mo2537sS996318358891zl79995781X