x2
x2
x2
x2
x2
x3
x4
x2
x2
x2
x4
x2
x2
x2
x3
x2
x2
x2
x2
x15
x5
x37
x5
x3
x2
x6
x2
x4
x2
x8
x2
x2
x2
x7
x2