import re
pattern = r'#[0-9A-Fa-f]{6}\b|#[0-9A-Fa-f]{3}\b'
n = int(input().strip())
inside = False
for _ in range(n):
    t = input()
    if "{" in t: 
        inside = True
    elif "}" in t: 
        inside = False
    elif inside:
        [print(x) for x  in re.findall(pattern,  t)]