class StringMatch
{
    public static int stringMatch(String str, String line)
    {     int n = str.length(), m = line.length();
          if (n == 0)    // str is empty
                return(0);
          for (int i = 0 ; i < m ; i++)
          {   if ( n > m - i ) return (-1);
              if (line.charAt(i) != str.charAt(0)) // first chars different
                  continue;              // skip rest of loop body
    
              // compare remaining characters
              // until first mismatch or end of string
              int j, k;
              for ( j = i+1, k = 1;
                    k < n && line.charAt(j)==str.charAt(k) ;
                    k++, j++) {  }
              if (k == n)          // end of str is reached
                  return(j-n);     // successful match
          }
          return(-1);              // failed to match
    }

    public static void main(String[] args)
    {    int k;
         if ( args.length == 2 )
             if ( (k = stringMatch(args[0], args[1])) > -1 )
                 System.out.println("matched at " + k);
             else
                 System.out.println("no match");
    }
}