задание 5

def sort(a):
    for i in range(0, len(a)):
        for j in range(i+1, len(a)):
            n = int(a[i].split(':')[0])
            m = int(a[j].split(':')[0])
            print(n,m)
            if n > m:
                t = a[i]
                a[i] = a[j]
                a[j] = t
            elif n == m:
                n = int(a[i].split(':')[1])
                m = int(a[j].split(':')[1])
                if n > m:
                    t = a[i]
                    a[i] = a[j]
                    a[j] = t
                elif n == m:
                    n = int(a[i].split(':')[2])
                    m = int(a[j].split(':')[2])
                    if n > m:
                        t = a[i]
                        a[i] = a[j]
                        a[j] = t
    return (a)


a = ["15:30:20", "7:30:05","2:01:34",
         "19:30:00", "0:20:41"]
print(a)
print(sort(a))