package main

import (
	"bufio"
	"fmt"
	"os"
	"strconv"
	"strings"
)

func main() {
    scanner  := bufio.NewScanner(os.Stdin)
    for scanner.Scan(){
        input := scanner.Text()
        part := strings.Split(input," ")
        a,_:=strconv.Atoi(part[0])
        b,_ :=strconv.Atoi(part[1])
        fmt.Println(a+b)

    }
}