#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
#define GG ios_base::sync_with_stdio(false); cin.tie(0); cout.tie(0);
int main () { GG;
ll a[3],x,y,z;
for(int i=0;i<3;i++) cin>>a[i];
sort(a,a+3);
z=sqrt( ( (a[0]*a[1])/a[2] ) );
y=a[1]/z;
x=a[0]/z;
ll s= (4*x)+(4*y)+(4*z);
cout<<s;
return 0;}
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