17×7+FC, 18×7+FC
17×7+WSC, 19×7
18x19S+FC, 18x19S+WSC
18x19W+FC, 18x19W+WSC
18×19+FC, 18×19+WSC
W1=0.382
W2=0.401
K1=0.328
K2=0.328
19