unordered_map<string,int>mp;
void init(){
	mp["H"] = 2;
	mp["C"] = 24;
	mp["N"] = 28;
	mp["O"] = 32;
	mp["F"] = 38;
	mp["Na"] = 46;
	mp["Mg"] = 48;
	mp["Al"] = 54;
	mp["Si"] = 56;
	mp["P"] = 62;
	mp["S"] = 64;
	mp["Cl"] = 71;
	mp["K"] = 78;
	mp["Ca"] = 80;
	mp["Mn"] = 110;
	mp["Fe"] = 112;
	mp["Cu"] = 128;
	mp["Zn"] = 130;
	mp["Ag"] = 216;
	mp["I"] = 254;
	mp["Ba"] = 274;
	mp["Hf"] = 357;
	mp["Pt"] = 390;
	mp["Au"] = 394;
	mp["Hg"] = 402;
}