Get Zodiac Sign name by birthday date

birthday = input('Insert your birthday date in format dd-mm: ', 's')
dm = strsplit(birthday, '-')
day = str2num(cell2mat(dm(1,1)))
month = str2num(cell2mat(dm(1,2)))


switch month
    case 1
        if day > 19
        fprintf('Aquarius')
    else
        fprintf('Capricorn')
    end
    case 2
        if day > 18
        fprintf('Capricorn')
    else
        fprintf('Pisces')
    end
    case 3
        if day > 20
        fprintf('Pisces')
    else
        fprintf('Aries')
    end
    % Well, i'm too busy to do all of them ... Then i will do with a better way. This is the first time i tried
    otherwise
       fprintf('Not a god month');
end