Some older operating systems could not type Croatian letters directly, so the letters were entered using the strings in the table below.
| Croatian letter | Input form |
|---|---|
| č | c= |
| ć | c- |
| dž | dz= |
| đ | d- |
| lj | lj |
| nj | nj |
| š | s= |
| ž | z= |
Given a word, output how many Croatian alphabet letters it contains.
dz= is always counted as one letter and must not be split into d and z=. Likewise, lj and nj are always counted as one letter. Any character sequence not listed in the table is counted one character at a time.
The first line contains a word of at most 100 characters.
The word consists only of lowercase English letters, -, and =. Croatian letters listed in the table are given in their corresponding input form.
Output the number of Croatian alphabet letters in the given word.