括号匹配用栈实现，遇到左括号直接入栈，遇到右括号判断栈是否为空，为空则直接退出，不为空再出栈

a=input()
top=-1
s=[""]*255
flag = True
for i in a:
    if i == "(" : 
        top += 1
        s[top] = 1
    elif i == ")":
        if top == -1 : 
            flag = False
        s[top] = 0
        top -= 1
if top == -1 and flag :
    print("YES")
else:
    print("NO")