What is the sum of all the elements of step V? 

Step I: If it is odd number, then it should be multiplied by 2, else it should be divided by 2. Step II: Difference between 1st and 2nd, 2nd and 3rd, 3rd and 4th and so on. Step III: Multiply all the digits within each number. Step IV: Add all the digits of each within each number. Step V: Divide all the digits/numbers by 2. Input:   25  89  56  40  97   21  24 Step I: 50 178  28 20  194  42  12 Step II: 128  150  8  174  152  30 Step III: 16   0   8   28   10  0 Step IV: 7   0   8   10   1   0 Step V: 3.5    0    4    5    0.5   0