Number of operations#901

Number of operations

1 second
128 megabytes
Very easy

Find the total number of operations of addition , subtraction , and multiplication in the given arithmetic expression.

Input

The arithmetic expression is given as a single line, without brackets or spaces. The number of symbols in the expression does not exceed .

Output

Print the number of specified operations.

Examples

Example 1

Loading
Loading

Example 8

Loading
Loading