#include <iostream> #include <map> #include <algorithm> #include <utility> void print( const std::pair<char, int>& p ) { std::cout << p.first << ':' << p.second << std::endl; } int main() { std::map<char, int> stat; char c; while( std::cin >> c ) { stat[c]++; } std::for_each( stat.begin(), stat.end(), print ); }