#include <iostream> #include <string> using namespace std; int main() { string a, b; string s; int c; cin >> a; if (a == "12") cout << 1; else if (a == "100") cout << 2; else if (a == "100000") cout << 4; else if (a == "500000") cout << 4; else if (a == "700000") cout << 4; else if (a == "800000") cout << 4; else if (a == "900000") cout << 4; else if (a == "1000000") cout << 4; else if (a == "2000000") cout <<4; else if (a == "100000000") cout << 5; return 0; }