Task: Program Execution
Input (English): 4, 19, ['Z', '8841', '1563', '7371', '7247', 'G', 'E', 'g', '7995', 'R', 'D', '5411', 'Z', 'u', 'E', '6859', 'h', '1491', 'u', 'q', 'x', 'k', 'l', '6967', '249', 'h', '7575']
Output (English): u1491h6859EuZ5411DR7995gEG72477371