C11111211113313112113313331333133313331333132313331333133313331313231132221   >>    C1111121111331311211331333133313331333133313231333133313331333131323113222   <<    C11111211113313112113313331333133313331333132313331333133313331313231132223   >>      C11111211113313112113313331333133313331333132313331333133313331313231132222   >>