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### eatingsymbols

### Problem Statement

There is always an integer in Takahashi's mind.

Initially, the integer in Takahashi's mind is `0`. Takahashi is now going to eat four symbols, each of which is `+`

or `-`

. When he eats `+`

, the integer in his mind increases by `1`; when he eats `-`

, the integer in his mind decreases by `1`.

The symbols Takahashi is going to eat are given to you as a string `S`. The `i`-th character in `S` is the `i`-th symbol for him to eat.

Find the integer in Takahashi's mind after he eats all the symbols.

### Constraints

- The length of
`S`is`4`. - Each character in
`S`is`+`

or`-`

.

### Input

Input is given from Standard Input in the following format:

S

### Output

Print the integer in Takahashi's mind after he eats all the symbols.

### Sample Input 1

+-++

### Sample Output 1

2

- Initially, the integer in Takahashi's mind is
`0`. - The first integer for him to eat is
`+`

. After eating it, the integer in his mind becomes`1`. - The second integer to eat is
`-`

. After eating it, the integer in his mind becomes`0`. - The third integer to eat is
`+`

. After eating it, the integer in his mind becomes`1`. - The fourth integer to eat is
`+`

. After eating it, the integer in his mind becomes`2`.

Thus, the integer in Takahashi's mind after he eats all the symbols is `2`.

### Sample Input 2

-+--

### Sample Output 2

-2

### Sample Input 3

----

### Sample Output 3

-4

### Tags

### Subtasks and Limits

Subtask | Score | #TC | Time | Memory | Scoring |
---|---|---|---|---|---|

1 | 100 | 8 | 1s | 128MB | Minimum |

2 | 0 | 3 | 1s | 128MB | Minimum |

### Judge Compile Command

g++-7 ans.cpp -o eatingsymbols -Wall -static -O2 -lm -m64 -s -w -std=gnu++17 -fmax-errors=512