#include <stdio.h>
#include <string.h>
#define N 101
#define D 17
int v[N],p[D];
void citire()
{
	int i,r=0;
	char s[N+1];
	fgets(s,N+1,stdin);
	v[0]=strlen(s);
	--v[0];
	for (i=v[0]-1; i>=0; i--)
		v[++r]=s[i]-'0';
	for (i=1; i<=v[0]; i++)
		printf("%d",v[i]);
	char m[D+1];
	fgets(m,D+1,stdin);
	p[0]=strlen(m);
	--p[0];
	r=0;
	printf("\n");
	for (i=p[0]-1; i>=0; i--)
		p[++r]=m[i]-'0';
	for (i=1; i<=v[0]; i++)
		printf("%d",p[i]);
}
int main()
{
	freopen("next.in","r",stdin);
    freopen("next.out","w",stdout);
    citire();
    return 0;
}