function class(am,uc,ra,us) {
	if (am >= 3) return 5 
	if ( (uc >= 2) && (us <= 1) ) return 5 
	if ((uc >= 2) && (am <= 1) && (us <= 2) )return 5  
	if ((ra >= 4) && (us >= 3) ) return 4  
	if ((am <= 1) && (us >= 2) && (us <= 2)) return 4  
	if (us <= 1) return 3 
	if ((ra >= 3) && (ra <= 3)) return 3 
	return 1.5
}
BEGIN {
	OFS="\t"
	print "#am","#uc","#ra","#us","#class";
		for(ra=1;ra<=5;ra++) 
		for(us=1;us<=5;us++) {
		am=2
		uc=3
		print am,uc,ra,us,class(am,uc,ra,us)
	}
}