#include <iostream>
#include <iomanip>
using namespace std;

int main(){

	float price = 100.50;
//	float price = 1001000.50;
	float tax = price*0.07;
	cout<<price<<endl;
	cout<<tax<<" rounded off to ";
	cout<<fixed<<setprecision(2)<<tax+0.005<<endl;

//	int dollars = tax;
//	cout<<dollars<<" dollars"<<endl;

/*
	float f=1.0;
	float epsilon = 0.0000001f;
	float epsilon1 = 0.00001f;
	cout<<f+epsilon<<endl;
	cout<<f+epsilon1<<endl;
*/

/*	cout<<setprecision(5)<<1234.05<<endl;
	cout<<setprecision(5)<<12345678.0<<endl;
	cout<<fixed<<setprecision(5)<<12345678.0<<endl;
	cout<<scientific<<setprecision(5)<<12345678.0<<endl;
*/
/*	float f = 3.504E12f;
	f=3504000000000;
	cout<<fixed<<f<<endl;
*/

//	int cents = (int)(tax * 100+0.5);
//	cout<<cents/100.0<<endl;	
//    cout<<"cents="<<tax*100+0.5<<endl;
	return 0;
}