C1313122132333132313132313232321323132313132322331323331323113313221231   >>    C131312213233313231313231323232132313231313232233132333132311331322123   <<    C1313122132333132313132313232321323132313132322331323331323113313221233   >>      C1313122132333132313132313232321323132313132322331323331323113313221232   >>