#include <iostream> #include <string> using namespace std; int main() { string s; cin >> s; int a, b, c; c = s.size()-1; a = s[0]-'0'; b=s[1]-'0'; if(s[2]>'4'){ if(s[1]!='9'){ b=s[1]-'0'+1; }else if(a!=9) { b=0; a+=1; }else{ a=1; b=0; c+=1; } } cout << a << "." << b << "*10^" << c << endl; } // 64 位输出请用 printf("%lld")