#include <stdio.h>

void main() {
   int i,k,j;

for(i=0;i<3;i=i+1)
{ for (j=0;j<3-i-1;j=j+1)
  { printf(" ");}
for(k=0;k<i*2+1;k=k+1)
{ printf("*");}
printf("\n");}}