CF 11B Jumping Jack

#include <iostream>
#include <cmath>
using namespace std;

int main()
{
int x;
while(cin>>x)
{
if(x < 0)
x = -x;
int n = 0;
while(1)
{
int dis = (n+1)*n/2;
if(dis == x)
break;
if(dis > x)
{
int k = dis - x;
if(k%2 == 0)
break;
}
n ++;
}
cout<<n<<endl;
}
return 0;
}