L=list(map(int,__import__("sys").stdin.read().split(","))) def cost(a,b): n=abs(a-b) return ((n+1)*n)/2 for i in range(min(L), max(L)+1): R=sum(cost(l,i) for l in L) print(R,i) # python3 d07_2.py < input | sort -n | head -1