Task: Program Execution
Input (English): 1, 5, ['W', 'F', 'J', '7019', '4221', '9765', '3757', '6747', 'i', 'e', 'R', 'N', '6331', 'C', '3291', 'Z', 'a', 'f', 'Y', '5667', '1009']
Output (English): WFJ70194221