#include<iostream>
#include<cstdio>
#include<string>
char a[11];
using namespace std;
main()
{
int h,f=0,t=0,p;
scanf("%s",a);
h=strlen(a);
if(a[0]==45)
{
cout<<"-";
f=1;
}
p=h;
while(a[p-1]==48&&p>=1)
{
t++;
p--;
}
for(int i=h-t-1;i>=f;i--)
cout<<a[i];
return 0;
}