C++ To Infinity | AtCoder

Time Limit	Memory Limit
2000ms	976MB

Problem Statement

Mr. Infinity has a string S consisting of digits from 1 to 9. Each time the date changes, this string changes as follows:

• Each occurrence of 2 in SS is replaced with 22. Similarly, each 3 becomes 333, 4 becomes 4444, 5 becomes 55555, 6 becomes 666666, 7 becomes 7777777, 8 becomes 88888888 and 9 becomes 999999999. 1 remains as 1.

For example, if SS is 1324, it becomes 1333224444 the next day, and it becomes 133333333322224444444444444444 the day a