Task: Program Execution
Input (English): 3, 13, ['1741', 'Q', 'C', 'x', '917', 'T', '3929', 'N', '3011', '3663', 'G', '9397', '2953', 'J', '33', '4573', '347', '2485', '9829', '9815']
Output (English): Cx917T3929N30113663G93972953