#include<iostream> // cin\cout\endl #include<cstdio> //scanf()\printf() #include<cstring> // strcpy()\strcat()\strcmp()\strlen()\memset() #include<cmath> //sqrt()\pow()\abs()\ceil()\floor()\max()\min() using namespace std; int main(){ int i,j,a; cin>>a; for(i=1;i<=a;i++){ for(j=1;j<=a-i;j++){ cout<<" "; } for(int k=1;k<=2*i-1;k++){ cout<<"*"; } cout<<endl; } for(i=a-1;i>=1;i--){ for(j=a-i;j>=1;j--){ cout<<" "; } for(k=2*i-1;k>=1;k--){ cout<<"*"; } cout<<endl; return 0;