For problem statement at 1000-1999/1100-1199/1150-1159/1151/problemD.txt this is a correct solution, but verifier at 1000-1999/1100-1199/1150-1159/1151/verifierD.go ends with All tests passed can you fix the verifier? ```go
package main

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

func main() {
	sc := bufio.NewScanner(os.Stdin)
	sc.Split(bufio.ScanWords)
	sc.Scan()
	n, _ := strconv.Atoi(sc.Text())

	diffs := make([]int, n)
	var ans int64 = 0

	for i := 0; i < n; i++ {
		sc.Scan()
		a, _ := strconv.Atoi(sc.Text())
		sc.Scan()
		b, _ := strconv.Atoi(sc.Text())
		diffs[i] = a - b
		ans += int64(n)*int64(b) - int64(a)
	}

	sort.Sort(sort.Reverse(sort.IntSlice(diffs)))

	for i, val := range diffs {
		ans += int64(i+1) * int64(val)
	}

	fmt.Println(ans)
}
```