#include #define rep(i,a,b) for(int i=a;i=b;i--) #define fore(i,a) for(auto &i:a) #define all(x) (x).begin(),(x).end() #pragma GCC optimize ("-O3") using namespace std; void _main(); int main() { cin.tie(0); ios::sync_with_stdio(false); _main(); } typedef long long ll; const int inf = INT_MAX / 2; const ll infl = 1LL << 60; templatebool chmax(T &a, const T &b) { if (abool chmin(T &a, const T &b) { if (b> a >> b >> S; int t = a * 60 + b - 9 * 60; int n = S.length(); if (S[3] == '+') { if (S[n - 2] == '.') { // UTC+X.X int x, y; sscanf(S.c_str(), "UTC+%d.%d", &x, &y); t += x * 60 + y * 6; } else { // UTC+X int x; sscanf(S.c_str(), "UTC+%d", &x); t += x * 60; } } else { if (S[n - 2] == '.') { // UTC-X.X int x, y; sscanf(S.c_str(), "UTC-%d.%d", &x, &y); t -= x * 60 + y * 6; } else { // UTC-X int x; sscanf(S.c_str(), "UTC-%d", &x); t -= x * 60; } } if (t < 0) t += 2 * 24 * 60; t %= 24 * 60; int h = t / 60; int m = t % 60; printf("%02d:%02d\n", h, m); }