import math
from sys import stdin, stdout
input=stdin.readline

def main():
    MAXAB=50
    matrix = [[0]*MAXAB for i in range(MAXAB)]
    for i in range(1, 33):
        for j in range(1, 33):
            if math.gcd(i, j) > 1:
                continue
            # i,j lehetseges fozet
            for k in range(MAXAB-1, i-1, -1):
                for l in range(MAXAB-1, j-1, -1):
                    matrix[k][l] = max(matrix[k][l], matrix[k-i][l-j]+1)

    N = int(input())
    for _ in range(N):
        A, B = map(int, input().split())
        print(matrix[A][B])

main()