#include <iostream> #include <fstream> #include <vector> #include <algorithm> #include <string.h> using namespace std; ifstream f("date.in"); ofstream g("date.out"); int main() { long long n; int i; vector<int> v; cin >> n; while(n) {v.push_back(n%10); n/=10; } for(i=v.size()-1;i>0;--i) cout << v[i] << "-"; cout << v[0] << '\n'; return 0; }