sys.stdin.readline()

For Loop Consideration: Slow Input/Output Can Cause Time Limit Exceeded (TLE)

BAEKJOON BOJ #15552

Input_ The first line contains an integer T (maximum 1,000,000) representing the number of test cases. The next T lines each contain two integers A and B (1 ≤ A, B ≤ 1,000).

Output_ For each test case, print the sum of A + B on a new line in the order they appear.

Solution_

import sys

T = int(sys.stdin.readline().rstrip())

results = []

for _ in range(T):
    A, B = map(int, sys.stdin.readline().split())
    results.append(A + B)

sys.stdout.write("\n".join(map(str, results)) + "\n")