Task: Program Execution
Input (English): ['J', 921, 'j', '7887', '143', 'B', 'B', 's', 7973, 9735], ['N', 'n', 5255, 'j', '7887', '143', 'B', 'B', 'u', 'z', 1471]
Output (English): j, 7887, 143, B, B