x3
x2
x2
x2
x2
x2
x3
x2
x2
x2
x4
x2
x2
x2
x2
x4
x4
x4
x6
x2
x3
x4
x2
x2
x3
x3
x2
x2
x2
x3
x2
x8
x2
x2
x2
x5
x4
x2
x2