Task: Program Execution
Input (English): 3, 17, ['Z', '3271', '4129', 'c', '2139', '3293', 'U', '7851', 'p', '4589', 'p', 'P', 'z', '1821', '7', 'M', '7027', 'C', 'p', '1991', '8219', 'r']
Output (English): 4129c21393293U7851p4589pPz18217M7027