Contest Duration: - (local time) (100 minutes) Back to Home
B - Round Down /

Time Limit: 2 sec / Memory Limit: 1024 MB

### 制約

• 0 \le X \le 10^{100}
• X は整数、または小数点以下が 100 桁以下の小数であり、先頭に余計な 0 は付かない

### 入力

X


### 出力

X を、小数点以下を切り捨てて整数の形式で出力せよ。

### 入力例 1

5.90


### 出力例 1

5


5.90 の小数点以下を切り捨てた 5 を整数で出力します。整数の形式でない 5.0 などは不正解になります。

### 入力例 2

0


### 出力例 2

0


X は小数点を含まないかもしれません。

### 入力例 3

84939825309432908832902189.9092309409809091329


### 出力例 3

84939825309432908832902189


Score : 200 points

### Problem Statement

Given an integer or a decimal X, round it down to an integer and print the result.

### Constraints

• 0 \le X \le 10^{100}
• X is an integer or a decimal with at most 100 digits after the decimal point, without unnecessary leading zeros.

### Input

Input is given from Standard Input in the following format:

X


### Output

Round X down to an integer and print the result (as an integer).

### Sample Input 1

5.90


### Sample Output 1

5


We round down 5.90 to an integer, 5, and print it as an integer. Non-integer outputs such as 5.0 will be judged as incorrect.

### Sample Input 2

0


### Sample Output 2

0


There may be no decimal point in X.

### Sample Input 3

84939825309432908832902189.9092309409809091329


### Sample Output 3

84939825309432908832902189


Take care when handling large numbers.