HandsOn $>1$: Minimum Difference Pairs

You are given two arrays, A and $B,$ of sizes $N$ and $M,$ respectively:

Your task is to find the smallest absolute difference between any element in A and any element in $B.$

Input Format

The first line contains an integer, $N,$ denoting the number of elements in $A.$

The next line contains an integer, $M,$ denoting the number of elements in B$.$

Each line $i$ of the $N$ subsequent lines $($where $iM1N{10}^{{?}^{?}}51M{10}^{{?}^{?}}51A[i]{10}^{{?}^{?}}50i0i$