using System;

public class Hello
{
    public static void Main()
    {
        var a = new int[] { 1, 3, 5, 7, 8, 10, 12 };
        var b = new int[] { 4, 6, 9, 11 };
        var c = new int[] { 2 };
        Console.WriteLine(getAns(a, 31) + getAns(b, 30) + getAns(c, 28));
    }
    public static int getAns(int[] a, int d)
    {
        var ans = 0;
        foreach (var x in a)
            for (int i = 1; i <= d; i++)
            {
                var w = i / 10 + i % 10;
                if (w == x) ans++;
            }
        return ans;
    }
}