code = "([{}])"

stack = []
open = {')': '(', ']': '[', '}': '{'}
is_valid = 0

for ch in code:
    if ch in '([{':
        stack.append(ch)
    elif ch in ')]}':
        if not stack:
            is_valid = 1
            break
        if stack.pop() != open[ch]:
            is_valid = 1
            break

if is_valid == 1:
    print("False")
else:
    print("True")