mod = 1000000007
eps = 10**-9


def main():
    import sys
    input = sys.stdin.buffer.readline

    for _ in range(int(input())):
        d, a, b = map(int, input().split())
        if b == 0:
            print(0)
            continue
        if a == 0:
            a = 1
        d = d-1
        aa = a%d
        bb = b%d
        if aa == 0:
            aa = d
        if bb == 0:
            bb = d
        if aa < bb:
            print((d * (d+1) // 2) * ((b - a) // d) + ((aa + bb) * (bb-aa+1) // 2))
        elif aa > bb:
            print((d * (d + 1) // 2) * ((b - a) // d) + ((aa + d) * (d - aa + 1) // 2) + (1 + bb) * (bb - 1 + 1) // 2)
        else:
            print((d * (d + 1) // 2) * ((b - a) // d) + aa)


if __name__ == '__main__':
    main()