C21221212121323223313131323132322331323331323121133132313231322131   >>    C2122121212132322331313132313232233132333132312113313231323132213   <<    C21221212121323223313131323132322331323331323121133132313231322133   >>      C21221212121323223313131323132322331323331323121133132313231322132   >>