Problem Statement

Given an integer $X$ between $\-10^{18}$ and $10^{18}$ (inclusive), print $\\left\\lfloor \\dfrac{X}{10} \\right\\rfloor$.

Notes

For a real number $x$, $\\left\\lfloor x \\right\\rfloor$ denotes "the maximum integer not exceeding $x$". For example, we have $\\left\\lfloor 4.7 \\right\\rfloor = 4, \\left\\lfloor -2.4 \\right\\rfloor = -3$, and $\\left\\lfloor 5 \\right\\rfloor = 5$. (For more details, please refer to the description in the Sample Input and Output.)

Constraints

• $\-10^{18} \\leq X \\leq 10^{18}$
• All values in input are integers.

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Input

Input is given from Standard Input in the following format:

$X$

Output

Print $\\left\\lfloor \\frac{X}{10} \\right\\rfloor$. Note that it should be output as an integer.

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Sample Input 1

47

Sample Output 1

4

The integers that do not exceed $\\frac{47}{10} = 4.7$ are all the negative integers, $0, 1, 2, 3$, and $4$. The maximum integer among them is $4$, so we have $\\left\\lfloor \\frac{47}{10} \\right\\rfloor = 4$.

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Sample Input 2

-24

Sample Output 2

-3

Since the maximum integer not exceeding $\\frac{-24}{10} = -2.4$ is $\-3$, we have $\\left\\lfloor \\frac{-24}{10} \\right\\rfloor = -3$.
Note that $\-2$ does not satisfy the condition, as $\-2$ exceeds $\-2.4$.

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Sample Input 3

50

Sample Output 3

5

The maximum integer that does not exceed $\\frac{50}{10} = 5$ is $5$ itself. Thus, we have $\\left\\lfloor \\frac{50}{10} \\right\\rfloor = 5$.

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Sample Input 4

-30

Sample Output 4

-3

Just like the previous example, $\\left\\lfloor \\frac{-30}{10} \\right\\rfloor = -3$.

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Sample Input 5

987654321987654321

Sample Output 5

98765432198765432

The answer is $98765432198765432$. Make sure that all the digits match.

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