printf("License GPLv3+: GNU GPL version 3 or later\n");
printf("<http://gnu.org/licenses/gpl.html>\n");
printf("This is free software: you are free to change and redistribute it.\n");
printf("License GPLv3+: GNU GPL version 3 or later\n");
printf("<http://gnu.org/licenses/gpl.html>\n");
printf("This is free software: you are free to change and redistribute it.\n");