Task: Program Execution
Input (English): first: 63
second: 21
first: 87
second: -26
first: 56
second: -25
first: -66
second: -4
first: 9
second: 13
first: -72
second: -61
first: 28
second: 90
first: 50
second: 87
Output (English): first: -72
second: -61
first: -66
second: -4
first: 9
second: 13
first: 28
second: 90
first: 50
second: 87
first: 56
second: -25
first: 63
second: 21
first: 87
second: -26