Prob5 has two inputs a list of distinct numbers (L) and another number (s). Prob5 must returns all pairs of numbers in L, whose sums are less than s. For example, prob5([5,7,1,8,3], 10) returns [(5,1),(5,3),(7,1),(1,8),(1,3)]. Note: the pairs (5,1) and (1,5) are the same. So, you can only keep one of them. def prob5(L,s): output =[] \# your code goes here return output