C1111233131211111211113313331333132313231323223313331322331313231231   >>    C111123313121111121111331333133313231323132322331333132233131323123   <<    C1111233131211111211113313331333132313231323223313331322331313231233   >>      C1111233131211111211113313331333132313231323223313331322331313231232   >>