Task: Program Execution
Input (English): 7, 8, ['5855', '7785', '1951', '8079', 'r', '3261', 'z', 'Z', '8091', 'H', '3259', 't', 'd', 'L', '3019', '7725', 'j', 'o', '2103', '5053']
Output (English): Zz