Halry vs Harry

**Lucky numbers** are numbers that only consists of lucky digits, i.e. 4 or 7. For example: 4, 7, 447, 47474 are lucky and 437, 147 are not. Halry likes Lucky number whereas Harry doesn't. Harry likes nearly lucky numbers. Suppose you have an integer $M$. If the number of lucky digits in $M$ is a lucky number and sum of the digits of the number $M$ is also lucky then, the number is said to be **