Initially if x = a = 2437 and y = 875, condition (1) that is x>y is true and output would be x = 1562 with y = 87
Explanation:
According to pseudo code the code will run until x becomes equal to y. Initially if x = a = 2437 and y = 875, condition (1) that is x>y is true. So next step would be x=x-y and output would be x = 1562 with y = 875. With initial values x = a = 2437 and y = 875, x becomes equal to y after 21 iterations and output is x=y=1