prime: 2
2 2 
prime: 4
4 8 4 0 
prime: 8
8 16 16 0 8 16 0 0 
prime: 16
0   1  2 3  4  5 6 7 8  9  10 
16 32 32 0 32 32 0 0 16 32 32 0 0 32 0 0 
prime: 32
32 64 64 0 64 64 0 0 64 64 64 0 0 64 0 0 32 64 64 0 64 64 0 0 0 64 64 0 0 64 0 0 
prime: 64
64 128 128 0 128 128 0 0 128 128 128 0 0 128 0 0 128 128 128 0 128 128 0 0 0 128 128 0 0 128 0 0 64 128 128 0 128 128 0 0 128 128 128 0 0 128 0 0 0 128 128 0 128 128 0 0 0 128 128 0 0 128 0 0 
prime: 128
128 256 256 0 256 256 0 0 256 256 256 0 0 256 0 0 256 256 256 0 256 256 0 0 0 256 256 0 0 256 0 0 256 256 256 0 256 256 0 0 256 256 256 0 0 256 0 0 0 256 256 0 256 256 0 0 0 256 256 0 0 256 0 0 128 256 256 0 256 256 0 0 256 256 256 0 0 256 0 0 256 256 256 0 256 256 0 0 0 256 256 0 0 256 0 0 0 256 256 0 256 256 0 0 256 256 256 0 0 256 0 0 0 256 256 0 256 256 0 0 0 256 256 0 0 256 0 0 

answer.code:1:1: error: ‘prime’ does not name a type
    1 | prime: 2
      | ^~~~~