Source : 3rd Series Problem Set of the CSP
Description
"6+3+1!", shouted Brutus like mad. "6+2+2!", contradicted Frutus. "You are 6+2+2 yourself", Brutus answered. "Your bald head!", said Frutus. The friends went out from the inn and Brutus trashed Frutus's tooth.

What did Brutus and Frutus discussed? They quarrelled about what the tenth partition of number 10 in the Nice Order was. The partition is any decomposition of the number to the positive integer addends which are ordered in the nonincreasing order (e.g. 10=6+3+1). The order, in which partition a_1+a_2+...+a_k comes before b_1+b_2+...+b_l if and only if for some u:

     a_1=b_1, a_2=b_2, ..., a_u=b_u , a_{u+1}>b_{u+1},

we call the Nice Order.

For example the partitions of the number 6 listed in the Nice Order are: 6, 5+1, 4+2, 4+1+1, 3+3, 3+2+1, 3+1+1+1, 2+2+2, 2+2+1+1, 2+1+1+1+1, 1+1+1+1+1+1

Problem: Write a program which reads the numbers n and k and as an input and writes the kth partition of the number n in the Nice Order as an output.

Note: In this case Frutus was right.

Input
The numbers n and k
Output
The kth partition of the number n in the Nice Order
Sample Input
6 3
Sample Output
4+2