Problem Statement

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

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).

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.

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.

见题面 Input 部分

见题面 Output 部分