Task: Program Execution
Input (English): 5, 18, ['9773', 'b', 'n', 'Y', 'b', 'N', '2691', '1999', 'r', '4915', 'D', '4115', 'r', '611', 'c', '1169', '8777', 'i', 'Y']
Output (English): i77789611c116r5114D5194r99911962Nb