654 B | 654 chars
import sys
from math import sqrt, pi, sin, factorial
inp = lambda : sys.stdin.readline()[:-1].strip()
mii = lambda x = " " : [*map(int,inp().split(x))]
mfi = lambda x = " " : [*map(float,inp().split(x))]
ii = lambda : int(inp())
fi = lambda : float(inp())
p = print
def f(a):
return int(a[::-1])
def solve():
while 1:
s = input()
if s == "0+0=0":
p("True")
break
a, c = s.split("=")
a, b = a.split("+")
a = f(a)
b = f(b)
c = f(c)
if a + b == c:
p("True")
else:
p("False")
if __name__ == "__main__":
tc = 1
for t in range(1, tc+1):
ret = solve()