The activity details of a project are given below:

$$\begin{array}{|c|c|c|} \hline \text{Activity} & \text{Depends on} & \text{Duration (in days)} \\ \hline P & \dots & 6 \\ \hline Q & P &15 \\ \hline R & Q,T & 12 \\ \hline S & R & 16 \\ \hline T & P & 10 \\ \hline U & Q, T & 14 \\ \hline V & U & 16 \\ \hline \end{array}$$

The estimated minimum time (in days) for the completion of the project will be __________