#include<fstream.h>
ifstream in("multiplu.in");
ofstream out("multiplu.out");
int a,b;
const int x[]={10,11,
100,101,110,111,
1000,1001,1010,1011,1100,1101,1110,1111,
10000,10001,10010,10011,10100,10101,10110,10111,11000,11001,11010,11011,11100,11101,11110,11111,
100000,100001,100010,100011,100100,100101,100110,100111,101000,101001,101010,101011,101100,101101,101110,101111,110000,110001,110010,110011,110100,110101,110110,110111,111000,111001,111010,111011,111100,111101,111110,111111,
1000000,1000001,1000010,1000011,1000100,1000101,1000110,1000111,1001000,1001001,1001010,1001011,1001100,1001101,1001110,1001111,1010000,1010001,1010010,1010011,1010100,1010101,1010110,1010111,1011000,1011001,1011010,1011011,1011100,1011101,1011110,1011111,1100000,1100001,1100010,1100011,1100100,1100101,1100110,1100111,1101000,1101001,1101010,1101011,1101100,1101101,1101110,1101111,1110000,1110001,1110010,1110011,1110100,1110101,1110110,1110111,1111000,1111001,1111010,1111011,1111100,1111101,1111110,1111111};
int main()
{	in>>a>>b;
	int i;
	for(i=0;i<128;i++)
		if((x[i]%a==0)&&(x[i]%b==0))
		{	out<<x[i];
			break;
		}
	out.close();
	return 0;
}