C23131111222331311211331323111133132233132313331323331323132322123311   >>    C2313111122233131121133132311113313223313231333132333132313232212331   <<    C23131111222331311211331323111133132233132313331323331323132322123313   >>      C23131111222331311211331323111133132233132313331323331323132322123312   >>