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1658. Sum of Digits

Time limit: 2.0 second
Memory limit: 64 MB
Petka thought of a positive integer n and reported to Chapaev the sum of its digits and the sum of its squared digits. Chapaev scratched his head and said: “Well, Petka, I won't find just your number, but I can find the smallest fitting number.” Can you do the same?

Input

The first line contains the number of test cases t (no more than 10000). In each of the following t lines there are numbers s1 and s2 (1 ≤ s1s2 ≤ 10000) separated by a space. They are the sum of digits and the sum of squared digits of the number n.

Output

For each test case, output in a separate line the smallest fitting number n, or “No solution” if there is no such number or if it contains more than 100 digits.

Sample

inputoutput
4
9 81
12 9
6 10
7 9
9
No solution
1122
111112
Problem Author: Vladimir Yakovlev (idea by Stanislav Vasilyev)
Problem Source: NEERC 2008, Eastern subregion quarterfinals