#!/usr/bin/env python3
# -*- coding: utf-8 -*-

#file = "./ex.txt"
file = "./input.txt"

def find_num(l:str) -> int:
    numbers = "9876543210"
    for z1 in numbers:
        if z1 in l[:-1]:
            start_pos = l.find(z1)+1
            for z2 in numbers:
                if z2 in l[start_pos:]:
                    print(f"{z1}{z2}")
                    return int(f"{z1}{z2}")
    return -999999999


if __name__ == "__main__":
    solution = 0
    input_file = open(file, "r")
    for line in input_file:
        line = line.strip()
        if line == "":
            continue
        solution += find_num(line)
    print(f"Solution: {solution}")