import Foundation

let input:[Int] = readLine()!.split(separator: " ").map{Int($0)!}

let r:Double = sqrt(pow(Double(input[0]), 2.0) + pow(Double(input[1]), 2.0))
var d:Int = 1
while true {
    if Double(d) > r * 2 {
        break
    }
    d += 1
}
print(d)