# include <bits/stdc++.h>

using namespace std;
string s[21]={"zero","one","two","three","four","five","six","seven","eight"
,"nine","ten","eleven","twelve","thirteen","fourteen","fifteen","sixteen",
"seventeen","eighteen","nineteen","twenty"},s1[6]={"","","twenty","thirty",
"forty","fifty"};
void times(int x){
	cout<<s1[x/10]<<" "<<s[x%10]<<" ";
}
int h,m;
int main(){
	cin>>h>>m;
	if(m==0){
		if(h<=20)cout<<s[h]<<" o'clock";
		else {
			times(h);
			cout<<"o'clock";	
		}
		return 0;
	}
	if(h<=20){
		cout<<s[h]<<" ";
		if(m<=20)
			cout<<s[m]<<endl;
		else
			times(m);
	}else{
		times(h);
		if(m<=20)
			cout<<s[m]<<endl;
		else
			times(m);
	}
	return 0;
}