#include <fstream>
#include <stdlib.h>
int indent = 0;
bool showing = false;
ofstream devnull("/dev/null");
ostream& onull = devnull;

/* scoreways() returns the number of ways to get a score of S while
 * using 8 point TDs only if TD8 > 0, 
 * using 7pt TDs only if TD7 > 0, 
 * using 6 point TDs only if TD6 > 0, 
 * and using 3pt FGs only if canFG.  
 * Always at most one of TD8, TD7, TD6 is nonzero.
 */
int scoreways(int s, int TD8, int TD7, int TD6, bool canFG)
{
    int x;
    ostream& debug = showing ? cerr : onull;
    for (int i = 0; i < indent; ++i) debug <<" ";
    debug << "scoreways(" << s << ", " << TD8 << ", ";
    debug << TD7 << ", " << TD6 << ", " << canFG <<")\n";
    indent +=2;

    if (s < 0) x = 0;
    else if (s == 0) x = 1;
    else if (TD8 > 0) 
    // Compute ways with one or more 8pt TD plus ways with no 8 pt TDs.
    {   x =   scoreways( s-8, TD8-1, 0, 0, canFG) 
	    + scoreways( s, 0, TD8, 0, canFG);
    }
    else if (TD7 > 0) 
    // Compute ways with one or more 7pt TD plus ways with no 7 pt TDs.
    {   x =   scoreways( s-7, 0, TD7-1, 0, canFG) 
            + scoreways( s, 0, 0, TD7, canFG);
    }
    else if (TD6 > 0) 
    // Compute ways with one or more 6pt TD plus ways with no TDs.
    {   x =   scoreways( s-6, 0, 0, TD6-1, canFG) 
            + scoreways( s, 0, 0, 0, canFG);
    }
    else if (s >= 3 && canFG) 
    // Compute ways with one or more 3pt FG plus ways with no FGs.
    {   x =   scoreways( s-3, 0, 0, 0, true) 
            + scoreways( s, 0, 0, 0, false);
    }
     // Compute ways with only safeties.
    else x = (0 == s%2) ? 1 : 0;
    indent -=2; 
    for (int i = 0; i < indent; ++i) debug <<" "; debug << x << endl;
    return x;
}

main(int argc, char* argv[])
{
    int s, t, f;
    if (argc > 2) showing = true;
    if (argc > 1)
    {   s = atoi(argv[1]); 
	cout << scoreways(s, s/6, 0, 0, true) << endl;
    }
    else while (cin >> s >> t >> f)
    {
	int ans;
	int TDlimit = (t < 0) ? s/6 : t;
	if (f >= 0) 
	{    s -= 3*f; 
	     ans = scoreways(s, TDlimit, 0, 0, false);
	}
	else
	     ans = scoreways(s, TDlimit, 0, 0, true);

	if (ans == 0) 
	    cout << "Invalid score" << endl;
	else 
	    cout << ans << endl;
    }
}