C3133313112331333131123313331323133313231323223313331322312323231   >>    C313331311233133313112331333132313331323132322331333132231232323   <<    C3133313112331333131123313331323133313231323223313331322312323233   >>      C3133313112331333131123313331323133313231323223313331322312323232   >>