# Enter your code here. Read input from STDIN. Print output to STDOUT
test_cases = int(input())
for c in range(test_cases):
    # a, b = map(int, input().split())
    try:
        case = input().split()
        a = int(case[0])
        b = int(case[1])
        answer = a/b
    except ZeroDivisionError as e:
        print(f"Error Code: integer division or modulo by zero")
    except ValueError as e:
        if not case[0].isdigit():
            print(f"Error Code: invalid literal for int() with base 10: '{case[0]}'")
        else:
            print(f"Error Code: invalid literal for int() with base 10: '{case[1]}'")
    else:
        print(int(answer))