Task: Program Execution
Input (English): first: 53
second: 36
first: -21
second: 71
first: 99
second: -87
first: -47
second: 37
first: -27
second: 64
Output (English): first: -47
second: 37
first: -27
second: 64
first: -21
second: 71
first: 53
second: 36
first: 99
second: -87