Brainfuck, 27 25 bytes

,.[->+>+<<]>[-[<<]>[.]>-] 

I ran it here

Uses a negative cell, get around this by adding a <

Old answer:

,.[->+>+<<]>[-[>>]>[.]<<<-] 

I used mod 2 instead of subtracting 48 to differentiate 0 and 1 which cuts down some characters.

Brainfuck, 27 25 23 bytes

,.[-[->>]<++<]>>>[+[.]] 

I ran it here (Uses negative cells, get around this by adding a << to the beginning)

I used modulus 2 instead of subtracting 48 to differentiate 0 and 1 which cuts down some characters. I also copied and did modulus at the same time.

Old answers:

,.[->+>+<<]>[-[<<]>[.]>-] ,.[->+>+<<]>[-[>>]>[.]<<<-] 

Brainfuck, 27 bytes

,.[->+>+<<]>[-[>>]>[.]<<<-] 

I ran it here

I used mod 2 instead of subtracting 48 to differentiate 0 and 1 which cuts down some characters.

Brainfuck, 27 25 bytes

,.[->+>+<<]>[-[<<]>[.]>-] 

I ran it here

Uses a negative cell, get around this by adding a <

Old answer:

,.[->+>+<<]>[-[>>]>[.]<<<-] 

I used mod 2 instead of subtracting 48 to differentiate 0 and 1 which cuts down some characters.