#include <cstdio>
#include <iostream>
using namespace std;
int a;
int read(){
int f=1,ans=0;
char c=getchar();
while (c<'0'||c>'9') f=(c=='-')?-1:1,c=getchar();
while (c>='0'&&c<='9') ans=ans*10+c-'0',c=getchar();
return ans*f;
}
void write(int b){
int a=b;
if (b<0) a=-a,putchar('-');
if (a==0) return;
write(a/10);
putchar(a%10+'0');
}
int main(void){
freopen("test.in","r",stdin);
freopen("test.out","w",stdout);
a=read();
cerr<<a;
write(a);
fclose(stdin);
fclose(stdout);
return 0;
}