#!/usr/bin/python3

code = []
with open("input") as fh:
    for ln in fh:
        code.append(int(ln))

def valid(code, o):
    for i in range(o - 25, o - 1):
        for j in range(i, o):
            if code[i] + code[j] == code[o]:
                return True

for o in range(25, len(code)):
    if not valid(code, o):
        print(o, code[o])