comefrom: <awangdev>202. Happy Number_1.java
code: private long process(long n) {
  
          long sum = 0;
          while (n != 0) {
              long mod = n % 10;
              sum +=  mod * mod;
              n /= 10;
          }
          return sum;
      }
masked: private long sample_funcname ( long var_0 ) {
    long var_2 = 0 ;
    while ( var_0 != 0 ) {
      long var_4 = var_0 % 10 ;
      var_2 += var_4 * var_4 ;
      var_0 /= 10 ;
    }
    return var_2 ;
  }
  