package main

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

func main() {
	reader := bufio.NewReader(os.Stdin)
	nStr, _ := reader.ReadString('\n')
	n, _ := strconv.Atoi(strings.TrimSpace(nStr))
	for i := 0; i < n; i++ {
		line, _ := reader.ReadString('\n')
		part := strings.Fields(strings.TrimSpace(line))
		a, _ := strconv.Atoi(part[0])
		b, _ := strconv.Atoi(part[1])
		fmt.Println(a + b)

	}

}