C1231221313231323131133131333132213231323131323133313131333132233131   >>    C123122131323132313113313133313221323132313132313331313133313223313   <<    C1231221313231323131133131333132213231323131323133313131333132233133   >>      C1231221313231323131133131333132213231323131323133313131333132233132   >>