#include<bits/stdc++.h>
//#include<windows.h>
using namespace std;
typedef long long ll;
typedef unsigned long long sll;
const int mod=1e9+7,INF=0x3f3f3f3f;
const long double pie=acos(-1);
#define dist(x1,y1,x2,y2) sqrt( ((x1)-(x2))*((x1)-(x2) + ((y1)-(y2))*((y1)-(y2) ) )
//#define KEY_DOWN(VK_NONAME)((GetAsyncKeyState(VK_NONAME)& 0x8000)? 1:0)
inline int readINT()
{
    int x=0,f=1;char ch=getchar();
    while(ch<'0'||ch>'9'){if(ch=='-')f=-1;ch=getchar();}
    while(ch>='0'&&ch<='9'){x=(x<<1)+(x<<3)+(ch^48);ch=getchar();}
    return x*f;
}
signed main(){
    cout<<12;
    return 0;
}