#include<stdio.h>
int main()
{
    int k, n, a;

    printf("\nPlease enter number:");
    scanf("%d", &n);

    k = 0;

    for(int i=0;i<n;++i)
    {
         for(int j=0;j<n;++j){
                         a =j+1+i;
                         if(a>=6)
                         {
                                a=a-5;
                         }
                
             printf("%4d",a);
                        
                 }
         printf("\n");
    }
    return 0;

        
}
어렵다.