// straightness constraints constraint P15.CB R19.CB 12 14.6 16 constraint V16.CB L20.CB 12 14.6 16 constraint V2.CB R4.CB 6 7.3 8 constraint G3.CA R5.CA 6 7.3 8 // possible hairpin constraint K11.CB R5.CB 4 4.7 8 constraint D12.CB R4.CB 4 4.7 8