#include<iostream> #include<cstring> #include<cmath> using namespace std; int a[31][31]={0},n; int main(){ a[1][1]=1; cin>>n; for(int i=2;i<=n;i++){ a[i-1][0]=a[i-1][i]=1; for(int j=1;j<=i;j++) a[i][j]=a[i-1][j]+a[i-1][j-1]; } for(int i=1;i<=n;i++){ for(int j=1;j<i;j++) cout<<a[i][j]<<" "; cout<<a[i][i]<<endl; } return 0; }