# t = int(input())
# n = int(input())
# a = list(map(int,input().split()))
# a,b,c = map(int,input().split())
#By Tahir Huzaifa on 05/12/2025
t = int(input())
for _ in range(t):
    a,b,c = map(str,input().split())
    ans = a[0] + b[0] + c[0]
    print(ans.capitalize())