Escape from the Darkness
Time Limit: 1s
Memory Limit: 65535k
The first line is a positive integer T (1 <= T <= 55) which indicates the numbers of the test
cases. Then flowing next T lines, there are two positive integer a, b (1 <= b<= a<= 10) in each line
as a group of cases.
The output of each case is one line with a positive integer which indicates the times of