clear
clc

answer = input('is this a leap year? (0/1)')
leapyear = (answer == 1);
month = input('first q: what month? ');
while (month > 0) && (month <= 12)
    switch month
        case {9, 4, 6, 11}
            days = 30;
        case {1, 3, 5, 7, 8, 10, 12}
            days = 31;
        case 2
            if leapyear
                days = 29;
            else
                days = 28;
            end
        otherwise 
            error('Pwthlthth!!!')
    end
    fprintf('Days in month %d are %d\n', ...
        month, days)
    
    month = input('what month? ');
end