C222123232321333131133133313331333132313231333112323321332213211   >>    C22212323232133313113313331333133313231323133311232332133221321   <<    C222123232321333131133133313331333132313231333112323321332213213   >>      C222123232321333131133133313331333132313231333112323321332213212   >>