include <stdio.h>

int main() {

int a,b;
b=0;
scanf("%d",&a);
if(a<0)
{
 printf("-");
 a=-a;   
}
while(a%10==0)
{
	a=a/10;
}

while(a!=0)
{

b=a%10;

	a=a/10;   
	printf("%d",b);
}
return 0;

}