#include <stdio.h>
 
int main(void) {
	int n;
    printf("Enter the number of rows: \n");
    scanf("%d",&n);
    int min;
     for(int i=1;i<=2*n-1;i++){
         for(int j=1;j<=2*n-1;j++){
 
              int a=i;
            if(i>n) a= 2*n-i;
              int b=j;
            if(b>n) b= 2*n-j;
     if(a<b) min = a;
   else min = b;
              printf("%d",min);
 
           }
 
           printf("\n"); 
 
    }
	return 0;
}
 

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5