C3133313112331333131123313331323133313231323223313231333131121311   >>    C313331311233133313112331333132313331323132322331323133313112131   <<    C3133313112331333131123313331323133313231323223313231333131121313   >>      C3133313112331333131123313331323133313231323223313231333131121312   >>