sum = 0

nums = {"one": 1,
        "two": 2,
        "three": 3,
        "four": 4,
        "five": 5,
        "six": 6,
        "seven": 7,
        "eight": 8,
        "nine": 9}

# with open("input.txt") as f:
    # for curr in f.readlines():
    #     for n in nums:
    #     print(curr[:-1])
    #    num = []
    #     for c in range(len(curr)):
    #         if curr[c].isnumeric():
    #             num.append(curr[c])
    #             break

    #     for c in range(len(curr), 0, -1):
    #         if curr[c-1].isnumeric():
    #             num.append(curr[c-1])
    #             break
    #     print(int("".join(num)))
    #     sum += int("".join(num))
# print(sum)

with open("input.txt") as f:
    for curr in f.readlines():
        num_pos = { 1: [], 2: [], 3: [], 4: [], 5: [], 6: [], 7: [], 8: [], 9: [], }
        for k, v in enumerate(curr):
            if v.isnumeric():
                num_pos[int(v)].append(k)
        for k, v in nums.items():
            foundL = curr.find(k)
            foundR = curr.rfind(k)
            foundR = -1 if foundL == foundR else foundR
            if foundL >= 0:
                num_pos[v].append(foundL)
            if foundR >= 0:
                num_pos[v].append(foundR)
        minpos = (999, -1)
        maxpos = (-1, -1)
        for k, v in num_pos.items():
            for e in v:
                minpos = (min(minpos[0], e), k) if min(minpos[0], e) != minpos[0] else minpos
                maxpos = (max(maxpos[0], e), k) if max(maxpos[0], e) != maxpos[0] else maxpos
        print(num_pos)
        print(minpos, maxpos)
        print(int("".join([str(minpos[1]), str(maxpos[1])])))
        sum += int("".join([str(minpos[1]), str(maxpos[1])]))
print(sum)