package main
import "fmt"

func main() {
    var n, b, c, s int
    fmt.Scanf("%d", &n)
    result := make([]int, n)
    for i:=0; i<n; i++ {
        fmt.Scanf("%d", &b)
        fmt.Scanf("%d", &c)
        fmt.Scanf("%d", &s)
        result[i] = (b + c) - s;
    }
    
    for _, val := range result {
        fmt.Println(val);
    }
}