count = 0

with open("input.txt", "r") as file:
    for line in file:
        largest = [0] * 12
        index = 0
        print(f"Processing line: {line.strip()}")
        for i in range(12):
            for j in range(index, len(line.strip()) - 11 + i):
                print(f"Comparing {line[j]} and {largest[i]}")
                if int(line[j]) > largest[i]:
                    print(f"New largest found: {line[j]} at index {j} for position {i}")
                    largest[i] = int(line[j])
                    index = j + 1
                    

        for i, val in enumerate(largest):
            print(f"Largest at position {i}: {val}")
            count += val * (10 ** (11 - i))

print(count)