C3131313233313113313223313223313112113313231323111133132333132311321   >>    C313131323331311331322331322331311211331323132311113313233313231132   <<    C3131313233313113313223313223313112113313231323111133132333132311323   >>      C3131313233313113313223313223313112113313231323111133132333132311322   >>