Problems
Number of operations
Number of operations
Find the total quantity of operations of addition $(+)$, subtraction $(-)$ and multiplication $(*)$ in the given arithmetic expression.
\InputFile
The arithmetic expression is given in one line, that does not contain brackets and spaces. The number of symbols does not exceed $1000$ in expression.
\OutputFile
Print the number of the specified operations.
Input example #1
-1+2*3+a
Output example #1
3
Input example #8
+5-2+4-m/n*2:4
Output example #8
4