4

#include<stdio.h>
int main()
{
    int i,j,k,n;
    while(1){
    printf("Enter n:");break;}
    while(scanf("%d",&n)!=EOF);{
        printf("Enter n:");
        for(i=1;i<=n;i++)
        {
            for(j=1;j<=n;j++)
            {
                k=i>j?j:i;
                printf("%4d",k);
                }
                printf("\n");
        }}
        return 0;
}