xsinxk wsinx vsin usinxk tsinx
81hnx 71hn 61hnxk 51hnx 41hn
jbhn ibhnxk hbhnx gbhn fbhnxk
ukgnxk tkgnx skgn rkgnxk qkgnx
5tfnx 4tfn 3tfnxk 2tfnx 1tfn