// Enjoy your stay. #include #define long long long #define LOOPVAR_TYPE long #define all(x) (x).begin(), (x).end() #define sz(x) ((LOOPVAR_TYPE)(x).size()) #define foreach(it, X) for(__typeof((X).begin()) it = (X).begin(); it != (X).end(); it++) #define GET_MACRO(_1, _2, _3, NAME, ...) NAME #define _rep(i, n) _rep2(i, 0, n) #define _rep2(i, a, b) for(LOOPVAR_TYPE i = (LOOPVAR_TYPE)(a); i < (LOOPVAR_TYPE)(b); i++) #define rep(...) GET_MACRO(__VA_ARGS__, _rep2, _rep)(__VA_ARGS__) #define fir first #define sec second #define mp make_pair #define mt make_tuple #define pb push_back const double EPS = 1e-9; const double PI = acos(-1.0); const long INF = 1070000000LL; const long MOD = 1000000007LL; using namespace std; typedef istringstream iss; typedef stringstream sst; typedef pair pi; typedef vector vi; #include long startTime; long getTime(){ struct timeval t; gettimeofday(&t,NULL); return t.tv_sec * 1000000LL + t.tv_usec; } long curTime(){ return getTime() - startTime; } int main(){ cin.tie(0); ios_base::sync_with_stdio(0); startTime = getTime(); while(getTime() <= 1800000); cout<<0<