/* Reading and verifying an integer string */

import java.io.*;

class str2int {

  public static void main (String[] args) throws IOException {

    int val = 0, i;
    String num;
    char ch;
    boolean ok = true;

    BufferedReader stdin;
    stdin = new BufferedReader (new InputStreamReader (System.in));

    System.out.print ("Type an integer: ");
    num = stdin.readLine();

    for (i=0; (i<num.length()) & ok; i++) {
      ch = num.charAt(i);
      if (ch >= 48 & ch <= 57) val = 10 * val + ch - 48;
         else ok = false;
    }

    if (ok) System.out.println ("The value is: " + val);
       else System.out.println ("Wrong input");
 
  }
}