Given a memory block of size N$.$ You can divide the memory block in a way that fulfills the following two conditions

$$ After the division, each memory block should have lengths A B$,$ or C

$$ After the division, the number of memory blocks should be maximum.

You are given integers N$,$ A$,$ B$,$ and C$.$ Print the maximum possible number of memory blocks. It is guaranteed that at least one corre memory division exists.

Function description

Complete the function Memory$().$ This function takes the following parameters and returns the required answer: