#include <stdio.h>
int main(void) {
int n;
printf("Enter the number of rows: \n");
int nst=n;
int nsp=0;
for(int i=1;i<=n;i++){
for(int j=1;j<=nst;j++)
for(int k=1;k<=nst;k++)
for(int j=1;j<=nst;j++)
nst-=2;
nsp+=2;
}
return 0;
}
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