Time Conversion

Read the lesson → understand the pattern → then code. Tutor works offline (built-in teacher); optional Cursor/Gemini keys upgrade chat quality.

Topic refresher: HackerRank Warmup

Classic warmup problems, taught slowly in Hindi, English, or Hinglish, then typed by you.

long long sum = 0;
for (int x : a) sum += x;
return sum;

Easy

9/12

EasyHackerRank Warmup

12-hour hh:mm:ssAM/PM to 24-hour. 12 AM is 00. 12 PM stays 12. PM adds 12 except for 12 itself.

Examples

Example 1

Input

07:05:45PM

Output

19:05:45

Example 2

Input

12:00:00AM

Output

00:00:00

C++17Autosaves