[백준] 2775번 부녀회장이 될테야 python

n = int(input())

for i in range(n):
    floor = int(input())
    room = int(input())

    f0 = [i for i in range(1,room+1)]

    for j in range(floor):
        for k in range(1,room):
            f0[k] += f0[k - 1]
    print(f0[room-1])