Parsare

#include <iostream>
#include <cstdio>
using namespace std;
const int dim=1<<17;
char next_ch()
{
    static int bp=dim;
    static char buff[dim];
    if(bp==dim)
    {
        fread(buff,1,dim,stdin);
        bp=0;
    }
    return buff[bp++];
}
void get(int &a)
{
    a=0;
    char ch;
    int semn=1;
    do
    {
        if(ch=='-')
            semn=-1;
        ch=next_ch();
    }
    while('9'<ch||ch<'0');
    do
    {
        a=a*10+ch-'0';
        ch=next_ch();
    }
    while('9'>=ch&&ch>='0');
    a*=semn;
}
int main()
{
#ifdef HOME
    freopen("test.in","r",stdin);
    freopen("test.out","w",stdout);
#endif
    int n,i,x;
    get(n);
    /*for(i=1;i<=n;i++)
    {
     get(x);
    }*/
    cout<<n;
    return 0;
}