C111123313331323113313331333133313231323133312111113331313113313223131   >>    C11112331333132311331333133313331323132313331211111333131311331322313   <<    C111123313331323113313331333133313231323133312111113331313113313223133   >>      C111123313331323113313331333133313231323133312111113331313113313223132   >>