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