import sys

mask = 16777216-1
def ng(n:int) -> int:
    n ^= (n << 6) & mask
    n ^= (n >> 5) & mask
    n ^= (n << 11) & mask    
    return n

ranges = dict()
for seed in map(int,sys.stdin.read().strip().split('\n')):
    visited = set()
    pseed = seed % 10
    key = 0
    for i in range(2000):
        nextSeed = ng(seed)
        nseed = nextSeed %10
        change = 9 + nseed - pseed
        key = (key * 19 + change) % 130321
        if i>2:
            if key not in visited:
                if key not in ranges:
                    ranges[key] = 0
                ranges[key] += nseed
                visited.add(key)
        seed = nextSeed
        pseed = nseed
print(max(ranges.values()))