x3
x2
x4
x3
x2
x2
x4
x2
x3
x2
x4
x2
x3
x4
x2
x3
x2
x3
x2
x4
x5
x9
x2
x2
x5
x2
x2
x3
x9
x3
x12
x3
x2
x2