Task: Program Execution
Input (English): 4, 17, ['7853', '8959', 'c', 'l', '4551', '7923', 'x', 'v', '7743', '1977', 'k', '8841', '2559', 'k', 'I', '3023', 'X', '4101', '1061', '777', '9893']
Output (English): X3203Ik95521488k77913477vx32971554l