Y x2 4 x

Y x2 4 xY x2 4 xY x2 4 xY x2 4 x
Y x2 4 xY x2 4 xY x2 4 xY x2 4 xY x2 4 xY x2 4 xY x2 4 xY x2 4 x
Y x2 4 xY x2 4 xY x2 4 xY x2 4 xY x2 4 xY x2 4 xY x2 4 xY x2 4 xY x2 4 xY x2 4 xY x2 4 xY x2 4 x
Y x2 4 xY x2 4 xY x2 4 xY x2 4 xY x2 4 xY x2 4 xY x2 4 xY x2 4 xY x2 4 xY x2 4 xY x2 4 xY x2 4 xY x2 4 xY x2 4 xY x2 4 xY x2 4 x
Y x2 4 xY x2 4 xY x2 4 xY x2 4 xY x2 4 xY x2 4 xY x2 4 xY x2 4 x