var
    day: array[12, int] = [31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31]
    ans: int = 0
for i in 1..12:
    for j in 1..day[i - 1]:
        if i == j div 10 + j mod 10:
            inc(ans)
echo ans