d6ef e6eff f6eff5 g6ef h6eff
2wfff 3wfff5 4wff 5wfff 6wfff5
rngff5 sngf tngff ungff5 vngf
gehf hehff iehff5 jehf kehff
54hff 64hff5 74hf 84hff 94hff5