C3131313233313113313223313223313112113313233313223313231333132313332211   >>    C313131323331311331322331322331311211331323331322331323133313231333221   <<    C3131313233313113313223313223313112113313233313223313231333132313332213   >>      C3131313233313113313223313223313112113313233313223313231333132313332212   >>