[11022] A + B -8

count = int(input())
lists = []

for i in range(count) :
    lists.append(list(map(int, input().split())))

for i in range(count):
    A = lists[i][0]
    B = lists[i][1]
    print(f"Case #{i+1}: {A} + {B} = {A+B}")