[
[(2,4),(6,8),(10,12),(14,16),(18,20)],
[(22,24),(null,28),(30,32),(null,36),(38,40)],
[(42,44),(46,48),(50,52),(54,56),(58,60)],
[(62,64),(66,68),(70,72),(null,76),(78,inf)],
[(82,nan),(86,88),(90,92),(NAn,96),(98,100)]
]
