T = int(input())
for i in range(T):
    try:
        nums = list(map(int, input().split()))
        a = nums[0]
        b = nums[1]
        div = a//b
    except ZeroDivisionError as e:
        print(f"Error Code: {e}")
    except ValueError as n:
        print(f"Error Code: {n}")
    else:
        print(div)