C312322331333132212111133133313331323133313221211331333132312321121   >>    C31232233133313221211113313331333132313331322121133133313231232112   <<    C312322331333132212111133133313331323133313221211331333132312321123   >>      C312322331333132212111133133313331323133313221211331333132312321122   >>