Problem:
Score : 100 points

Problem Statement

Cat Snuke is learning to write characters.
Today, he practiced writing digits 1 and 9, but he did it the other way around.

You are given a three-digit integer n written by Snuke.
Print the integer obtained by replacing each digit 1 with 9 and each digit 9 with 1 in n.

Constraints

111 \leq n \leq 999

n is an integer consisting of digits 1 and 9.

Input

Input is given from Standard Input in the following format:

n

Output

Print the integer obtained by replacing each occurrence of 1 with 9 and each occurrence of 9 with 1 in n.

Sample Input 1

119

Sample Output 1

991

Replace the 9 in the ones place with 1, the 1 in the tens place with 9 and the 1 in the hundreds place with 9. The answer is 991.

Sample Input 2

999

Sample Output 2

111

Solution in Go (1.6) (judge verdict: Accepted)

package main

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

var sc = bufio.NewScanner(os.Stdin)

func getInt() int {
	sc.Scan()
	n, _ := strconv.Atoi(sc.Text())
	return n
}

func getFloat() float64 {
	sc.Scan()
	n, _ := strconv.ParseFloat(sc.Text(), 64)
	return n
}

func sum(n []int) int {
	a := 0
	for _, v := range n {
		a += v
	}
	return a
}

func partseFloat(s string) (n float64) {
	n, _ = strconv.ParseFloat(s, 64)
	return
}

func main() {
	sc.Split(bufio.ScanWords)
	sc.Scan()
	n := sc.Text()

	Rune := []rune(n)
	str := make([]string, 3)

	for i, v := range Rune {
		if string(v) == "1" {
			str[i] = "9"
		} else {
			str[i] = "1"
		}
	}
	fmt.Println(strings.Join(str, ""))
}