Time Limit: 2000/1000 MS (Java/Others)
Memory Limit: 65536/65536 K (Java/Others)
For a number,if the length of continuous odd digits is even and the length of continuous even digits is odd,we call it odd-even number.Now we want to know the amount of odd-even number between L,R(1<=L<=R<= 9*10^18).
First line a t,then t cases.every line contains two integers L and R.
Print the output for each case on one line in the format as shown below.
2016 ACM/ICPC Asia Regional Shenyang Online