class Card:
    def __init__(self, init_yen):
        self.yen = init_yen
        self.point = 0
    
    def pay(self, fare):
        pay = fare
        if (pay<=self.point):
            pay = fare - self.point
        self.store_point(pay)

    def store_point(self, pay):
        self.point = self.point + pay*0.1

input_line = int(input())
for i in range(input_line):
    s = input().rstrip().split(' ')
    print("hello = "+s[0]+" , world = "+s[1])