#include <fstream>
#include <string>
using namespace std;
ifstream fin("reverse.in");
ofstream fout("reverse.out");
string s;
int main()
{
	int i,n;
	fin>>s;
	n=1;
	int l=s.length();
	if(s[0]=='-')
	{
		if(s[l-1]!='0')
			n=2;
		fout<<'-';
		for(i=l-1;i>0;i--)
		{
			if(n==1 && s[i]=='0')
			{
				if(s[i-1]=='0')
					n=1;
				else
					n++;
				continue;
			}
			fout<<s[i];
		}
	}
	else
	{
		if(s[l-1]!='0')
			n=3;
		for(i=l-1;i>=0;i--)
		{
			
			if(n==1 && s[i]=='0')
			{
				if(s[i-1]=='0')
					n=1;
				else
					n++;
				continue;
			}fout<<s[i];
		}	
	}
	fin.close();
	fout.close();
	return 0;
}