--rw-rw-r-- stallion sys  324 Jan 12  2020 Makefile
--rw-rw-r-- stallion sys 5938 Jan 12  2020 parser.go
--rw-rw-r-- stallion sys 2038 Jan 12  2020 peano.go
--rw-rw-r-- stallion sys 1531 Jan 12  2020 stats.go
--rw-rw-r-- stallion sys 3090 Jan 12  2020 tree.go
--rw-rw-r-- stallion sys 2210 Jan 12  2020 tree2.go