Problem:
Score : 300 points

Problem Statement

You are given an integer N. Among the integers between 1 and N (inclusive), how many Shichi-Go-San numbers (literally "Seven-Five-Three numbers") are there?

Here, a Shichi-Go-San number is a positive integer that satisfies the following condition:

When the number is written in base ten, each of the digits 7, 5 and 3 appears at least once, and the other digits never appear.

Constraints

1 \leq N < 10^9

N is an integer.

Input

Input is given from Standard Input in the following format:

N

Output

Print the number of the Shichi-Go-San numbers between 1 and N (inclusive).

Sample Input 1

575

Sample Output 1

4

There are four Shichi-Go-San numbers not greater than 575: 357, 375, 537 and 573.

Sample Input 2

3600

Sample Output 2

13

There are 13 Shichi-Go-San numbers not greater than 3600: the above four numbers, 735, 753, 3357, 3375, 3537, 3557, 3573, 3575 and 3577.

Sample Input 3

999999999

Sample Output 3

26484

Solution in Java8 (OpenJDK 1.8.0) (judge verdict: Wrong Answer)

import java.util.*;

public class Main{
  public static void main(String[] args){
    Scanner sc = new Scanner(System.in);
    String x = sc.next();
    int count = 0;
    String str = x;
    int[] stg = {3,7,5};
    int c = Integer.parseInt(x);

    if(c < 357){
        System.out.println("0");
    }else{
        for(int i = 355;i <= c;i += 2){
            String s = String.valueOf(i);
            if((s.contains("3") & !(s.contains("5") & s.contains("7")) & (s.contains("0") | s.contains("1") | s.contains("2") | s.contains("4") | s.contains("6") | s.contains("8") | s.contains("9")))){
                count++;
            }
        }
        System.out.println(count);
    }
  }
}