You are given two n-sphere, centered at C1, C2 and having a radius of R1, R2 respectively The velocity vector of the two n-sphere is V1, V2 respectively. Find the minimum time, when the smaller n-sphere will be fully inside of the bigger one. If it is impossible/minimum time is greater than 100000, then print -1. Constraints click to hide There will be atmost $10^{5}$ testcases.