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#include <fstream>
using namespace std;
ifstream f("lacate.in");
ofstream g("lacate.out");
int n, i, j, v[270][270], nrl;
int main(){
f>>n;
for(i=1; i<n; i++)
for(j=i+1; j<=n; j++)
v[i][j-1]=v[j][i]=++nrl;
g<<nrl<<' '<<n-1<<"\n";
for(i=1; i<=n; i++)
{
for(j=1; j<n; j++)
g<<v[i][j]<<' ';
g<<"\n";
}
return 0;
}