C1111233131211111211113313331323133313231323223313331322331323312331322321   >>    C111123313121111121111331333132313331323132322331333132233132331233132232   <<    C1111233131211111211113313331323133313231323223313331322331323312331322323   >>      C1111233131211111211113313331323133313231323223313331322331323312331322322   >>