D21221323131123313131333132233131133131323223313232212121111121
>>
D2122132313112331313133313223313113313132322331323221212111112
<<
D21221323131123313131333132233131133131323223313232212121111123
>>
D21221323131123313131333132233131133131323223313232212121111122
>>