#include<sys/types.h>
#include<sys/stat.h>

int
main(int argc, char **argv){
	mode_t mode = S_IRUSR | S_IWUSR | S_IXUSR | S_IRGRP | S_IXGRP | S_IROTH |S_IXOTH ;
	if(mkdir(argv[1],mode)<0)
		err_sys("mkdir error");
	return 0;
}