C11122123231323131323131323132322331313232313231333132323132321   >>    C1112212323132313132313132313232233131323231323133313232313232   <<    C11122123231323131323131323132322331313232313231333132323132323   >>      C11122123231323131323131323132322331313232313231333132323132322   >>