Task: Program Execution
Input (English): first: 64
second: 77
first: 21
second: -19
first: -79
second: 13
first: -67
second: -69
first: -42
second: -65
Output (English): first: -79
second: 13
first: -67
second: -69
first: -42
second: -65
first: 21
second: -19
first: 64
second: 77