// let n = 51, u = 'px';
let n = 100 / 9, u = '%';
for (let i = 0; i < 94; ++i) {
	let x = (i % 10) | 0;
	let y = (i / 10) | 0;
	console.log(`.unit.u${i}{background-position:${x*n}${u} ${y*n}${u}}`);
}