range 1..10
range x..10
range -20...20
range -01234567890...-999999999
range -01234567890..-999999999
range -01234567890..-999999999
range -20...20x
range 1..-20
range 1....-20
range 1..200000000000000
range 100000000...200000000000000
range 10
range ...200000000000000
range 1-1...200000000000000
range x1..10
range 1..10y
range 123xx456
range 123456