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)