#include <stdio.h>
#include <dirent.h>
#include <sys/types.h>

void myls(char []);

int main(int argc,char * argv[]){
    if (argc == 1) {
        myls(".");
    } else {
        while (--argc) {
            ++argv;
            myls(*argv);
        }
    }
    return 0;
}
void myls(char dirname[]){
    DIR *dir_ptr;
    struct dirent  *direntp;
    int flag=0;
    if ((dir_ptr = opendir(dirname)) == NULL) {
        fprintf(stderr, "ls1 cannot open %s\n",dirname);
    } else {
        while ((direntp = readdir(dir_ptr)) != NULL)
	{
            printf("%s   ", direntp->d_name);
	    flag++;
	    if(flag==6)
	    {
		   printf("\n");
		   flag=0;
			 }
	}
        printf("\n");
        closedir(dir_ptr);
    }
}