#include<bits/stdc++.h>
using namespace std;
string s,ans1,ans2,sum1;
long long maxn=0,minn=105;
int sum;
int main()
{
	getline(cin,s);
	for(int i=0;i<s.size();i++)
	{
		if(s[i]==' '||s[i]==','||s[i]=='.')
		{
			if(sum>maxn)
			{
				ans1=sum1;
				maxn=sum;
			}
			if(sum<minn)
			{
				ans2=sum1;
				minn=sum;
			}
		}
		sum1+=s[i];
		sum++;

	}
	cout<<ans1<<endl<<ans2;
    return 0;
}