#include #include #include #include #include #include #include #include #include typedef long double ld; typedef long long ll; const ll INF = (ll)1e18 + 1; const ll MOD = 1e9 + 7; // Split namespace util { std::vector< std::string > split(std::string s, char delimiter) { std::vector< std::string > vs; std::string sub; for (auto c : s) { if (c == delimiter) vs.push_back(sub), sub.clear(); else sub += c; } vs.push_back(sub); return vs; } } // namespace util // Minimum, Maximum template T minimum(T head, T tail) { return std::min(head, tail); } template H minimum(H head, T... tail) { return std::min(head, minimum(tail...)); } template T maximum(T head, T tail) { return std::max(head, tail); } template H maximum(H head, T... tail) { return std::max(head, maximum(tail...)); } // Output template std::ostream& operator << (std::ostream& os, std::pair p) { return os << p.first << " " << p.second; } template std::ostream& operator << (std::ostream& os, std::vector< T > v) { for (ll i = 0; i < (ll)v.size(); i++){ os << " [" << i << "]" << v[i]; if (i % 10 == 9) os << std::endl; } return os; } template std::ostream& operator << (std::ostream& os, std::vector< std::pair > vp) { ll i = 0; for (auto p : vp){os << " [" << i++ << "]" << p.first << " " << p.second; if (i % 10 == 0) os << std::endl;} return os; } void print(){ std::cout << std::endl; } template void print(H head) { std::cout << head << std::endl; } template void print(H head, T... tail){ std::cout << head << " ", print(tail...); } ll get_day_num_of_month(ll year, ll month) { ll day_num = 31; if (month == 4 || month == 6 || month == 9 || month == 11) { day_num = 30; } else if (month == 2) { day_num = (year % 400 == 0 || (year % 100 != 0 && year % 4 == 0)) ? 29 : 28; } return day_num; } int main() { std::cin.tie(nullptr); std::ios::sync_with_stdio(false); std::string S; std::cin >> S; std::string y = S.substr(0, 4); std::string m = S.substr(5, 2); std::string d = S.substr(8, 2); ll year = std::atoll(y.c_str()); ll month = std::atoll(m.c_str()); ll day = std::atoll(d.c_str()); ll day_num = get_day_num_of_month(year, month); ll ans = day + 2; if (ans > day_num) { ans -= day_num; year = month != 12 ? year : year + 1; month = month != 12 ? month + 1 : 1; } std::cout << std::setfill('0') << std::setw(4) << year << "/"; std::cout << std::setfill('0') << std::setw(2) << month << "/"; std::cout << std::setfill('0') << std::setw(2) << ans << std::endl; return 0; }