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)
}
}



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