Task: Program Execution
Input (English): 3, 18, ['5025', 'n', 'B', 'f', '7443', 'k', '6249', 'B', '5009', '6509', 'W', 'y', '1571', '1131', 'v', '4133', 'z', '229']
Output (English): 922z3314v13111751yW90569005B9426k3447fB