C33212213132313232233132233132311331313232233131322331323331313231323221221   >>    C3321221313231323223313223313231133131323223313132233132333131323132322122   <<    C33212213132313232233132233132311331313232233131322331323331313231323221223   >>      C33212213132313232233132233132311331313232233131322331323331313231323221222   >>