#include <iostream>
	#include <map>
 
	void handle_case(const std::string& input)
	{
		std::map<char, int> character_count;
 
		for(char c: input)
		{
			if(++character_count[c] > 1)
			{
				std::cout << input << " : " << c << " : " << input.find(c) << std::endl;
				return;
			}
		}
		std::cout << "Np duplicates were found." << std::endl;
	}
	int main()
	{
		std::string input;
		while(getline(std::cin, input))
		{
			handle_case(input);
		}
	}

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