SuperIncreasing.java

importjava.util.*; 
importjava.io.*;

classMain {

publicstaticStringMathChallenge(Stringstr) {
// code goes here
for(charitem : str.toCharArray())
if(!(item == '0' || item == '1'))
return"Argument Exception";

doubleacc = 0;
for(inti = 0; i< str.length(); i ++)
 {

intnum = Integer.parseInt(String.valueOf(str.charAt(i)));
acc += num * Math.pow(2, str.length() - 1 - i);
 }
returnString.valueOf((int)acc);
 }

publicstaticvoidmain (String[] args) { 
// keep this function call here 
Scanners = newScanner(System.in);
System.out.print(MathChallenge(s.nextLine())); 
 }

}