Task: Program Execution
Input (English): [489, -54, -831, 976, 849, 703, -895, -911, -325, 294, 456, -318, 530, -21, 21]
Output (English): [490, -50, -830, 980, 850, 700, -900, -910, -320, 290, 460, -320, 530, -20, 20]