Problem:
Score : 100 points

Problem Statement

In AtCoder City, there are three stations numbered 1, 2, and 3.

Each of these stations is operated by one of the two railway companies, A and B. A string S of length 3 represents which company operates each station. If S_i is A, Company A operates Station i; if S_i is B, Company B operates Station i.

To improve the transportation condition, for each pair of a station operated by Company A and one operated by Company B, there will be a bus service connecting them.

Determine if there is a pair of stations that will be connected by a bus service.

Constraints

Each character of S is A or B.

|S| = 3

Input

Input is given from Standard Input in the following format:

S

Output

If there is a pair of stations that will be connected by a bus service, print Yes; otherwise, print No.

Sample Input 1

ABA

Sample Output 1

Yes

Company A operates Station 1 and 3, while Company B operates Station 2.

There will be a bus service between Station 1 and 2, and between Station 2 and 3, so print Yes.

Sample Input 2

BBA

Sample Output 2

Yes

Company B operates Station 1 and 2, while Company A operates Station 3.

There will be a bus service between Station 1 and 3, and between Station 2 and 3, so print Yes.

Sample Input 3

BBB

Sample Output 3

No

Company B operates all the stations. Thus, there will be no bus service, so print No.

Solution in Java8 (OpenJDK 1.8.0) (judge verdict: Runtime Error)

import java.util.*;
public  class Main
{ public static void main(String args[])
  { Scanner sc=new Scanner (System.in);
     long n=sc.nextLong();int  s=0;int  f=0;
   long b=sc.nextLong(); int i=1;
   long r=sc.nextLong();
   while(n>s)
   {for(i=1;i<=b;i++)
       { if(n>s)
           s=s+1;
         else
         break;
        }if(b==0)
         f=0;
         else
        f=f+i-1;
        for(i=1;i<=r;i++)
        { if(n>s)
            s=s+1;
            else
            break;
        }
        
   }
   System.out.println(f);
}
}