const a:array[1..127] of longint=(1,10,11,100,101,110,111,1000,1001,1010,1011,1100,1101,1110,1111,10000,10001,10010,10011,
                                  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);

var i,x,y:longint;
    f,g:text;
begin
assign(f,'multiplu.in');
assign(g,'multiplu.out');
rewrite(g);
reset(f);
readln(f,x,y);
for i := 1 to 127 do
       if (a[i] mod x = 0 ) and (a[i] mod y = 0) then
                     begin
                      writeln(g,a[i]);
                      break;
                     end;
close(f);
close(g);
end.