public class zy221118{
public static void main(String[] args) {
int[][] a = new int[5][5];
for(i=0;i<5;i++){
a[i][0] = 1;
a[i][i] = 1;
if(i>=2){
for (int j=1;j<i ;j++ ) {
a[i][j] = a[i-1][j-1]+a[i-1][j];
}
}
}
for(int i=0;i<5;i++){
for(int k=1;k<5-i;k++){
System.out.print(" ");
}
}
System.out.println();
}
}