from decimal import *
import sys

sys.setrecursionlimit(10 ** 6)
int1 = lambda x: int(x) - 1
p2D = lambda x: print(*x, sep="\n")
def MI(): return map(int, sys.stdin.readline().split())
def LI(): return list(map(int, sys.stdin.readline().split()))
def LLI(rows_number): return [LI() for _ in range(rows_number)]

def main():
    x,y=MI()
    x,y=Decimal(x),Decimal(y)
    r=(x*x+y*y).sqrt()*2+1
    r=r.quantize(Decimal("0"),rounding=ROUND_FLOOR)
    print(r)

main()