int script_4947(int arg0) {
	switch (arg0) {
		case 1:
			return 1;
		case 2:
			return 1;
		case 3:
			return 1;
		case 4:
			return 1;
		case 5:
			return 2;
		case 6:
			return 3;
		case 7:
			return 4;
		case 8:
			return 5;
		case 9:
			return 6;
		case 10:
			return 7;
		case 11:
			return 8;
		case 12:
			return 9;
		case 13:
			return 10;
		case 14:
			return 11;
		case 15:
			return 12;
	}
	return -1;
}