You are executing 1 iteration less than required.
The reason is that, suppose input as-
4 65 566 11 1623455078
It can be represented as-
4\n 65\n 566\n 11\n 1623455078\n
The newline character after 4 gets caught by your string and is used in first iteration of T, giving a blank new line. This also leads to last string not getting executed. Hence, WA.
Try taking that newline char by using