import sys
mask = 16777216-1
def ng(n:int):
n ^= (n << 6) & mask
n ^= (n >> 5) & mask
n ^= (n << 11) & mask
return n
ans = 0
for x in = map(int,sys.stdin.read().strip().split('\n')):
for _ in range(2000):
x = ng(x)
ans += x
print(ans)