y52r x52r57 w52r5 v52r u52r57
9e2r57 8e2r5 7e2r 6e2r57 5e2r5
ko1r5 jo1r io1r57 ho1r5 go1r
vx0r ux0r57 tx0r5 sx0r rx0r57
66zr57 56zr5 46zr 36zr57 26zr5