import sequtils,strutils,math

proc hypot(x1,y1,x2,y2 : float64): float64=
    var
        x = abs(x1 - x2)
        y = y1 - y2
    return x * sqrt(1 + pow(y / x, 2))

var x,y : float64
(x,y) = stdin.readline.split.map(parsefloat)
echo floor(hypot(0,0,x,y) * 2).int  + 1