```go
package main

import (
	"bufio"
	"fmt"
	"os"
)

func main() {
	in := bufio.NewReader(os.Stdin)
	out := bufio.NewWriter(os.Stdout)
	defer out.Flush()

	var n int
	fmt.Fscan(in, &n)

	s := make([]int64, n)
	g := make([]int64, n)
	L := make([]int64, n)
	R := make([]int64, n)

	for i := 0; i < n; i++ {
		fmt.Fscan(in, &s[i], &g[i])
		L[i] = s[i]
		R[i] = s[i] + g[i]
	}

	low := make([]int64, n)
	high := make([]int64, n)

	low[0] = L[0]
	high[0] = R[0]

	for i := 1; i < n; i++ {
		low[i] = max(L[i], low[i-1]-1)
		high[i] = min(R[i], high[i-1]+1)
		if low[i] > high[i] {
			fmt.Fprintln(out, -1)
			return
		}
	}

	for i := n - 2; i >= 0; i-- {
		low[i] = max(low[i], low[i+1]-1)
		high[i] = min(high[i], high[i+1]+1)
		if low[i] > high[i] {
			fmt.Fprintln(out, -1)
			return
		}
	}

	res := make([]int64, n)
	res[0] = high[0]
	total := res[0] - s[0]

	for i := 1; i < n; i++ {
		res[i] = min(high[i], res[i-1]+1)
		total += res[i] - s[i]
	}

	fmt.Fprintln(out, total)
	for i := 0; i < n; i++ {
		if i > 0 {
			fmt.Fprint(out, " ")
		}
		fmt.Fprint(out, res[i])
	}
	fmt.Fprintln(out)
}

func max(a, b int64) int64 {
	if a > b {
		return a
	}
	return b
}

func min(a, b int64) int64 {
	if a < b {
		return a
	}
	return b
}
```