Task: Program Execution
Input (English): first: 37
second: -12
first: 29
second: 83
first: 16
second: -21
first: -10
second: 68
first: -24
second: 57
first: 83
second: 42
first: 75
second: 18
first: -51
second: -68
first: -68
second: -83
Output (English): first: -68
second: -83
first: -51
second: -68
first: -24
second: 57
first: -10
second: 68
first: 16
second: -21
first: 29
second: 83
first: 37
second: -12
first: 75
second: 18
first: 83
second: 42