package main

import . "fmt"

func main() {
	var a, b string
	Scan(&a,&b)
	if '0' <= b[0] && b[0] <= '9' {
		var n int64
		Sscan(a+b,&n)
		Println(n)
	} else {
		var x,y int64
		Sscan(a, &x)
		Sscan(b, &y)
		Println(a+b)
	}
}