#include <iostream>
#include <Windows.h>  
#include <string>
#include <algorithm>
using namespace std;



int main()
{   
	
	SetConsoleCP(1251);
	SetConsoleOutputCP(1251);

	string str;
	getline(cin, str);
	str[0] = (str[0] >= -32 && str[0] <= 0 ? str[0] - 32 : toupper(str[0]));
	transform(str.begin() + 1, str.end(), str.begin() + 1, [](char ch)
	{
		if(int(ch) >= -64 && int(ch) <= -33)
			return ch + 32;
		return tolower(ch);
	});

	cout << str;
    
}