Task: Program Execution
Input (English): 5, 9, ['4063', '7249', 'C', '8957', '9039', '4863', 'z', '2459', 'd', 'q', '8189', 'E', '6423', '2783', 'd', '9919', 'i', 'a', 'x', '2649', '5005']
Output (English): d2459z48639039