#!/usr/local/bin/ruby

A=[
["F",-1],["Cl",-1],["Br",-1],["I",-1],["At",-1],
["Li",1],["Na",1],["K",1],["Rb",1],["Cs",1],["Fr",1],
["Be",2],["Mg",2],["Ca",2],["Sr",2],["Ba",2],["Ra",2],
["O",-2],
["Al",3],
["Zn",2],["Cd",2],
["Sc",3],["Y",3],["La",3],["Ac",3],["Lu",3],["Lr",3],
["Ag",1],
["B",3],
["H",1],
["Ga",3],["In",3],
["Bi",3],["Sb",3],
["Pb",2],["Sn",2],
["Tl",1],
["N",-3],["P",5],["As",3],
["S",-2],["Se",-2],["Te",-2],["Po",-2],
["Si",4],["Ge",4],
]

D=[
["Ti",4],["Zr",4],["Hf",4],
["V",5],["Nb",5],["Ta",5],
["Cr",6],["Mo",6],["W",6],
["Mn",7],["Tc",7],["Re",7],
["Fe",8],["Ru",8],["Os",8],
["Co",9],["Rh",9],["Ir",9],
["Ni",10],["Pd",10],["Pt",10],
["Cu",11],["Ag",11],["Au",11],
]

def vlnc(fml)
	fa=[]
	while fml.size>0
		break unless m=/([A-Z][a-z]?)([\d\.]*)/.match(fml)
		an=1; an=m[2].to_f unless m[2]==""
		fa.push([m[1],an])
		fml=m.post_match
	end
	fb=[]
	for e in A
		break if fa.size==1
		tmp=fa.assoc(e[0])
		fb.push(tmp+[e[1],tmp[1]*e[1]]) if tmp
		fa.delete(tmp)
	end
	v=0
	for e in fb
		v-=e[3]
	end
	fb.push(fa[0]+[v/fa[0][1],v])
	fb.push(["error","","there are more than one unknown valence atom"]) if fa.size>1
	return fb
end

while true
	fml=STDIN.readline.chomp
	tmp=vlnc(fml)
	for e in tmp
		str="#{e[2]}"
		dtmp=D.assoc(e[0])
		str+=" (d^#{dtmp[1]-e[2]})" if dtmp
		print "#{e[0]}: #{str}\n"
	end
end