While Loop

Question

Hello!

I have the following code that outputs:
1
12
123
1234...
depending on the number inputted. However, if you input 10 or greater, the code will output:
....
12345678910
1234567891011
123456789101112....
Is there anyway for it to output this instead:
1234567890
12345678901
123456789012...
?
The code has to be two nested while loops. Thanks in advanced!
https://code.sololearn.com/c42n6s0Bcd1M/?ref=app

Answer 1

Line 14: change cout << k; to cout << k%10;