#![allow(unused_imports)]
#![allow(non_snake_case)]
use proconio::input;
use proconio::marker::*;
use std::cmp::*;
use std::collections::*;

fn main() {
    let months = 12;
    let days1 = 9;
    let days2 = 3;
    let result = solve(months, days2, days1);
    println!("{}", result);
}

fn solve(months: usize, tens_digit: usize, ones_digit: usize) -> usize {
    let mut count = 0;
    for month in 1..=months {
        for tens in 0..=tens_digit {
            if month == 2 && tens > 2 {
                continue;
            }
            for ones in 0..=ones_digit {
                if tens == 0 && ones == 0 {
                    continue;
                }
                if !is_valid(month, tens, ones) {
                    continue;
                }
                if tens + ones == month {
                    count += 1;
                }
            }
        }
    }
    count
}

fn is_valid(month: usize, tens: usize, ones: usize) -> bool {
    match tens {
        3 => {
            if [4, 6, 9, 11].contains(&month) {
                return false;
            }
            if ones > 1 {
                return false;
            }
        }
        2 => {
            if month == 2 && ones > 8 {
                return false;
            }
        }
        _ => {}
    }
    true
}