package main

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

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

	}

}