comefrom: <awangdev>639. Decode Ways II_2.java
code: private int countDouble(char a, char b) {
  
          if (a == '0' || (a >= '3' && a <= '9')) return 0; 
          
          if (a == '1') return b == '*' ? 9 : 1; 
          if (a == '2') { 
              if (b == '*') return 6;
              if (b <= '6') return 1;
              return 0;
          }
          
          if (b >= '0' && b <= '6') return 2; 
          if (b >= '7' && b <= '9') return 1; 
          
          return 15;
      }
masked: private int sample_funcname ( char var_0 , char var_1 ) {
    if ( var_0 == '0' || ( var_0 >= '3' && var_0 <= '9' ) ) return 0 ;
    if ( var_0 == '1' ) return var_1 == '*' ? 9 : 1 ;
    if ( var_0 == '2' ) {
      if ( var_1 == '*' ) return 6 ;
      if ( var_1 <= '6' ) return 1 ;
      return 0 ;
    }
    if ( var_1 >= '0' && var_1 <= '6' ) return 2 ;
    if ( var_1 >= '7' && var_1 <= '9' ) return 1 ;
    return 15 ;
  }
  