B331133131323131133132233133313231333132313331323331323223313231232211   >>    B33113313132313113313223313331323133313231333132333132322331323123221   <<    B331133131323131133132233133313231333132313331323331323223313231232213   >>      B331133131323131133132233133313231333132313331323331323223313231232212   >>