C2221333133313331311233132313331333133313331323312111112323233321   >>    C222133313331333131123313231333133313331333132331211111232323332   <<    C2221333133313331311233132313331333133313331323312111112323233323   >>      C2221333133313331311233132313331333133313331323312111112323233322   >>