import sys
sys.set_int_max_str_digits(4*10**6)
class Summation:
    def __init__(self, n, m):
        self.n = n
        self.m = m

    def calculate(self):
        n, m = self.n, self.m
        n1 = n % m
        n2 = (n + 1) % m
        if n % 2 == 0:
            return ((n // 2) % m * n2) % m
        else:
            return (n1 * ((n + 1) // 2) % m) % m

T = int(input())  
for _ in range(T):
    N, M = map(int, input().split())
    summation = Summation(N, M)
    print(summation.calculate())