On a special cubic dice the numbers 1, 2, 3, 4, 5 and 6 are on the faces: 1 is on the face opposite 2, 3 is on the face opposite 4, and 5 is in the face opposite 6

Each vertex is given a vertex number, which is the sum of the numbers on the three faces that form the vertex If I subtract the smallest vertex number from the largest vertex number, what number will I get ?