C3133313112331333131123313331323133313231323223313331333131131311   >>    C313331311233133313112331333132313331323132322331333133313113131   <<    C3133313112331333131123313331323133313231323223313331333131131313   >>      C3133313112331333131123313331323133313231323223313331333131131312   >>