comefrom: <awangdev>One Edit Distance_1.java
code: private boolean compareStr(String s, String t, int x, int y) {
  
          return s.substring(x).equals(t.substring(y));
      }
masked: private boolean var_0 ( String var_1 , String var_2 , int var_3 , int var_4 ) {
    return var_1 . substring ( var_3 ) . equals ( var_2 . substring ( var_4 ) ) ;
  }
  