TEST DATA FOR `wpb'

Input for test 1

2 11328

Output for test 1

11329

Input for test 2

2 101

Output for test 2

1111

Input for test 3

2 1325300100

Output for test 3

1325300109

Input for test 4

3 30010

Output for test 4

101101

Input for test 5

3 5100199

Output for test 5

5101101

Input for test 6

4 83399987

Output for test 6

83531009

Input for test 7

4 137099089

Output for test 7

137099091

Input for test 8

4 837099089

Output for test 8

837171009

Input for test 9

5 1337101999

Output for test 9

1338110007

Input for test 10

5 1997101999

Output for test 10

1997310007

Input for test 11

5 1

Output for test 11

1000710007