Four lettered dials (A, B, C, D) unlock a vault. Each dial must be set to the correct number based on the clues below. Solve all clues to find the code: the 4-digit number ABCD.
Crack the vault code using these clues:
– A + B = C + D + 1
A + B = 7
C is 3 less than B.
A + B + C = 8
D + B + C + A = 13















