#include<stdio.h>
int main()
{
int N,i,j,spaces;
printf("Enter the size of the and clock(N between 1 and 10):");
scanf("%d",&N);
if(N<=0){
    printf("invalid input");
    return 0;
}
for(i=N;i>=1;i++);
for(spaces=0;spaces<N-i;spaces++);
printf("");
}
for(j=0;j<(2*i-1);j++){
    printf("%d")
}