Gray1)
stroka = input()
count = 0
for i in stroka:
if i == 'Ю':
count += 1
print(f'Букв "Ю": {count}')
2)
stroka = input()
count = 0
a = list(stroka)
for i in range(0, len(a) - 1):
if a[i] == 'А' and a[i+1] == 'Ю':
count += 1
print(f'Количество "АЮ": {count}')
3)
stroka = input()
a = list(stroka)
b = [0]*a. count(' ')
print(f'Слов: {len(b)+1}')
Nicholson