#include <iostream>
#include <math.h>
using namespace std;
 
double roundDouble(double numToRound, double multiple) 
{ 
 if(multiple == 0) 
 { 
  return numToRound; 
 } 
 
 return round(numToRound / multiple) * multiple;
} 
 
int main() {
	cout << roundDouble(110.0, 50.0) << endl;
	cout << roundDouble(95.0, 50.0) << endl;
	cout << roundDouble(125.0, 50.0) << endl;
	cout << roundDouble(750.0, 50.0) << endl;
	cout << roundDouble(145.0, 50.0) << endl;
	return 0;
}

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