s = input()
total = len(s)
for i in range(len(s)):
if s[i]=='w':
total += 2
else:
total += 1
print(total)
cyA9IGlucHV0KCkKdG90YWwgPSBsZW4ocykKZm9yIGkgaW4gcmFuZ2UobGVuKHMpKToKCWlmIHNbaV09PSd3JzoKCQl0b3RhbCArPSAyCgllbHNlOgoJCXRvdGFsICs9IDEKcHJpbnQodG90YWwp