Python-сообщество

a = [int(i) for i in input().split()]
n = 0
for i in range(len(a)):
    if a[i] != a[i + 1]:
        n += 1
print(n)    

a = [int(i) for i in input().split()]
n = 0
b = 0
for i in range(len(a)):
    if a[i] != a[n]:
        n = i
        b += 1
print(n)    

a = [int(i) for i in input().split()]
num_distinct = 1
for i in range(0, len(a) - 1):
    if a[i] != a[i + 1]:
        num_distinct += 1
print(num_distinct)

a = [int(i) for i in input().split()]
b = []
for i in a:
    if i not in b:
        b.append(i)
print(len(b))

print(len(set(list(map(int, input().split())))))

lst = [1, 2, 3, 4, 5]
print(len(set(lst)))