n = list(map(int, list(input())))

ans = 8 + 9
for i in range(len(n)-1):
	if n[i] == n[i+1]:
		ans += 9
	else:
		ans += 8

rl = [[n[0], 0]]
for i in range(1,len(n)):
	if rl[-1][0] == n[i]:
		rl[-1][1] += 1
	else:
		rl.append([n[i], 1])
	
print(ans + len(rl))