Task: Program Execution
Input (English): first: 21
second: -3
first: 48
second: 30
first: 89
second: -42
first: -1
second: -97
first: -50
second: 35
first: 66
second: -90
first: 77
second: 88
first: 54
second: 8
first: -18
second: -68
Output (English): first: -50
second: 35
first: -18
second: -68
first: -1
second: -97
first: 21
second: -3
first: 48
second: 30
first: 54
second: 8
first: 66
second: -90
first: 77
second: 88
first: 89
second: -42