C3133313112331333131123313331323133313231323223313331333131332321   >>    C313331311233133313112331333132313331323132322331333133313133232   <<    C3133313112331333131123313331323133313231323223313331333131332323   >>      C3133313112331333131123313331323133313231323223313331333131332322   >>