nof_day = [31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31]
print(
    sum(
        sum(0 if m != d//10 + d%10 else 1 for d in range(1, nof_day[m-1]+1))
        for m in range(1, 12)
    )
)