C1111233131211111211113313331323133313231333133322133313113313231232322121121   >>    C111123313121111121111331333132313331323133313332213331311331323123232212112   <<    C1111233131211111211113313331323133313231333133322133313113313231232322121123   >>      C1111233131211111211113313331323133313231333133322133313113313231232322121122   >>