C21221212121211331313233313131133132333132313223313113313231323331322131   >>    C2122121212121133131323331313113313233313231322331311331323132333132213   <<    C21221212121211331313233313131133132333132313223313113313231323331322133   >>      C21221212121211331313233313131133132333132313223313113313231323331322132   >>