Task: Program Execution
Input (English): 3, 7, ['9719', '4931', '1123', 'Q', '7463', 'l', '2077', 'E', '7179', '6041', '4055', '9765', '1159', '7065', '7057', 'C', '9531', '611', '5525', '1573', 'a']
Output (English): 2077l7463Q1123