//begin c++ code
#include<iostream>
using namespace std;

int main()
{
  unsigned int ans=0;
  for(unsigned int num=0;num<16777216;++num)
  {
    int total=0;  
    unsigned int shift=1;
    for(int i=1;i<=24;++i)
    {
      if(num & shift)
      {
        total+=i;
      }
      else
      {
        total-=i;
      }
      shift<<=1;            
    }
    if(total==0) ++ans;
  }

  cout<<"Complete!"<<endl;
  cout<<"Answer is "<<ans<<endl;
}
//end c++ code

#begin perl code 

$ans = 0;

for($num=0;$num<16777216;$num++){
  $total=0;  
  $shift=1;
  for($i=1;$i<=24;$i++) {
    if($num & $shift) {
      $total+=$i;
    }
    else
    {
      $total-=$i;
    }
    $shift <<= 1;            
  }
  $ans++ if $total == 0;
}

print "$ans\n";
# end perl code