H1: S-S, H2: S-S, H3: L-S, H4: L-L, H5: L-L, H6: L-L, H7: S-S, H8: S-S, H9: L-L, H10: S-L, H11: L-S, H12: S-S, H13: L-L, H14: S-L, H15: S-S, H16: S-S, H17: S-S, H18: L-L