C11111211113313112113313331333132313331322113121111331323223313131121   >>    C1111121111331311211331333133313231333132211312111133132322331313112   <<    C11111211113313112113313331333132313331322113121111331323223313131123   >>      C11111211113313112113313331333132313331322113121111331323223313131122   >>