new file:   erl/bisearch.erl
	new file:   erl/cross_arith.erl
	new file:   erl/hanoi.beam
	new file:   erl/hanoi.erl
	new file:   erl/perms.beam
	new file:   erl/perms.erl
	new file:   erl/ring0.beam
	new file:   erl/ring0.erl