快读快写

inline int read()
{
	int x = 0,f = 1;
	char ch = getchar();
	while (ch < '0' || ch>'9')
	{
		if (ch == '-')
			f = -1;
		ch = getchar();
	}
	while (ch >= '0' && ch <= '9')
	{
		x = (x << 1) + (x << 3) + (ch ^ 48);
		ch = getchar();
	}
	return x * f;
}

inline void write(int x)
{
	if (x < 0) putchar('-'), x = -x;
	if(x > 9)
		write(x / 10);
	putchar(x % 10 + '0');
	return;
}

#include <iostream>
using namespace std;
typedef long long LL;

inline LL read()
{
	LL x = 0, f = 1;
	char ch = getchar();
	while (!isdigit(ch))
	{
		if (ch == '-') 
			f = -1;
		ch = getchar();
	}
	while (isdigit(ch))
	{
		x = (x << 1) + (x << 3) + (ch ^ 48);
		ch = getchar();
	}
	return x * f;
}

inline void write(LL x)
{
	if (x < 0) putchar('-'), x = -x;
	if (x > 9) write(x / 10);
	putchar(x % 10 + '0');
}

int main()
{
	int a = read();
	write(a);
	return 0;
}