GONE - G-One Numbers


The War of Evil vs Good continues and Ra-One and G-One continue to be on respective sides.

After saving all the cities with Ra-One Numbers G-One realised that some cities whose population is a "G-One Number" can be easy target for Ra-One.

A G-One number is a number sum of whose digits is a prime number

For example 12 .. sum = 1+2 = 3 ... 3 is a prime number.

G-One wants to find out all the populations which can be g-One numbers....

Can You help him.?

You will be given the range of population and you have to tell him how many in this range are G-One Numbers.

Input

first line has number 'c' indicating the number of ranges.

'c' lines follow and contain two numbers ... 'f' and 't' inclusive.

Output

Print a single line per case giving the number of populations which are G-One numbers.

Example

Input:
3
10 19
1 9
20 29

Output: 4
4
5

Note: c will be less than 100
t and f will be less than 10^8 inclusive


hide comments
amar31661: 2024-09-16 16:03:11

nice

sn03: 2023-07-05 19:37:24

lol people celebrating in the comment section trying to flex newbies

charandeep: 2023-03-31 22:55:02

WOWOWO

[Rampage] Blue.Mary: 2021-12-25 14:43:35

SIGILL and SIGKILL are not the same (Runtime Error) signal. Pay attention!

shioiori: 2021-12-25 11:26:08

Don't use pragma or you will get SIGKILL

svader: 2020-06-25 06:54:58

Fine fn ally

jopdhiwaala: 2020-06-04 10:40:16

No one cares in how many attempts you did :)

kushagra_2: 2020-04-11 11:55:30

1st digit DP AC in one go :)

scolar_fuad: 2019-11-23 09:52:18

Easy digit dp problem
my 4th digit dp

gs0812: 2019-09-09 09:41:30

Down voted because too ez.


Added by:Devil D
Date:2012-02-24
Time limit:1s
Source limit:30000B
Memory limit:1536MB
Cluster: Cube (Intel G860)
Languages:All except: ASM64
Resource:Own