using namespace std;
string s,nm[10];
map<string,int>word={
{"zero",-1},{"one",1},{"two",2},{"three",3},{"four",4},{"five",5},
{"six",6},{"seven",7},{"eight",8},{"nine",9},{"ten",10},
{"eleven",11},{"twelve",12},{"thirteen",13},{"fourteen",14},{"fifteen",15},
{"sixteen",16},{"seventeen",17},{"eighteen",18},{"nineteen",19},{"twenty",20},
{"a",1},{"both",2},{"another",1},{"first",1},{"second",2},{"third",3}
};
int m[10],_m;
void T(int num,int p){
	string s1="",s2="";
	while(num!=0){
		s1+=num%10+'0';
		num/=10;
	}
	for(int i=s1.size()-1;i>=0;i--){
		s2+=s1[i];
	}
	nm[p]+=s2;
}
int main(){
	getline(cin,s);
	int _s=s.size();
	for(int i=0;i<_s&&s[i]!='.';i++){
		if(s[i]!=' '){
			string x="";
			for(;s[i]!=' '&&s[i]!='.'&&i<_s;i++){
				x+=s[i];
			}
			if(word[x]!=0){
				if(word[x]==-1) m[++_m]=0;
				else m[++_m]=word[x];
			}
		}
	}
	if(_m==0){
		cout<<"0";
		return 0;
	}
	for(int i=1;i<=_m;i++){
		m[i]=m[i]*m[i]%100;
	}
	sort(m+1,m+_m+1);
	for(int i=1;i<=_m;i++){
		if(m[i]==0) nm[i]+="00";
		if(m[i]<10&&m[i]>0) nm[i]+='0';
		T(m[i],i);
	}
	for(int i=1,k=0;i<=_m;i++){
		for(;nm[i].size()>=1;){
			if(nm[i][0]=='0') nm[i].erase(0,1);
			else{
				k=1;
				break;
			}
		}
		if(k==1) break;
	}
	if(nm[_m]==""){
		cout<<"0";
		return 0;
	}
	for(int i=1;i<=_m;i++){
		cout<<nm[i];
	}
	return 0;
}