Fix n≥2. A subset S⊆[n]={1,2,…,n} of size n−2 is selected. You are given that s∈S∑s=s1 and s∈S∑s2=s2. If possible, find the two missing values when n=50,s1=1231, and s2=41619. Report the concatenation of the two numbers, with smaller number first. For example, if the two missing numbers were 12 and 34, report 1234 as the answer.