need help decrypting C from simple knapsack for cryptography.
Using:

Simple: 7, 10, 38, 79
Multiplier (W): 29
Modulus (N): 67
MI of W: (W^-1): 37

Decrypt: C = 30, 99, 69, 24.
Enter in binary format (4 digits each):

or a code could work to decrypt C as well but explain what the code is doing in the process.