KVs
1a,1b,1c,1d,1e,1f,2f,2e,2d,2c,2b,2a,3a,3b,3c,3d,3e,3f,4f,4e,4d,4c,4b,4a,5a,5b,5c,6c,6b,6a,7a,7b,7c