1955A - Yogurt Sale - CodeForces Solution

import math as m
num = int(input())
for _ in range(num):
    i,j,k = [int(p) for p in input().split()]
    if 2*j < k:
        print( str(j * i))
    else:
        print(str((i%2) * j + m.floor(i/2)*k))