def check(s):
    s1 = ""
    s2 = ""
    pos = 0
    for i in range(len(s)):
        pos+=1
        if s[i] == '=':
            break
        s1+=s[i]
    for i in range(pos + 1,len(s)):
        s2+=s[i]
    return eval(s1) == eval(
w = {}
w["123"] = 1
x = input()