#define __USE_MINGW_ANSI_STDIO 0 #include using namespace std; using ll = long long; #define int ll using VI = vector; using VVI = vector; using PII = pair; #define FOR(i, a, n) for (ll i = (ll)a; i < (ll)n; ++i) #define REP(i, n) FOR(i, 0, n) #define ALL(x) x.begin(), x.end() #define PB push_back const ll LLINF = (1LL<<60); const int INF = (1LL<<30); const int MOD = 1000000007; template T &chmin(T &a, const T &b) { return a = min(a, b); } template T &chmax(T &a, const T &b) { return a = max(a, b); } template bool IN(T a, T b, T x) { return a<=x&&x T ceil(T a, T b) { return a/b + !!(a%b); } template ostream &operator <<(ostream& out,const pair& a){ out<<'('< ostream &operator <<(ostream& out,const vector& a){ out<<'['; REP(i, a.size()) {out<> s; if(s[2] >= '5') { if(s[1] == '9') { s[1] = '0'; if(s[0] == '9') { s[0] = '0'; s = '1' + s; } else { s[0]++; } } else { s[1]++; } } // cout << s << endl; cout << s[0] << "." << s[1] << "*10^" << s.size()-1 << endl; return 0; }