Алхимия

#include <iostream>
#include <conio.h>
#include <string>
#include <algorithm>
#include <vector>

using namespace std;

int main()
{
	int r, y, b, k, needr=0, needy=0, needb=0, answer;

	cin >> b >> r >> y;

	cin >> k;

	for (int i = 1; i <= k; i++)
	{
		string prom;
		cin >> prom;
		if (prom == "Red")
			needr++;
		else
			if (prom == "Yellow")
				needy++;
			else
				needb++;
	}

	if (needb != 0 && needy != 0 && needr != 0)
		cout << r*y*b;
	else
		if (needb == 0 && needy != 0 && needr != 0)
			cout << r*y;
		else
			if (needb != 0 && needy == 0 && needr != 0)
				cout << r*b;
			else
				if (needb != 0 && needy != 0 && needr == 0)
					cout << b*y;
				else
					if (needb != 0)
						cout << b;
					else
						if (needy != 0)
							cout << y;
						else
							if (needr != 0)
								cout << r;
							else
								cout << 0;

	_getch();
	return 0;
}