# Inlezen hele kaart naar list-of-lists
map = []
with open("input.txt", "r") as f:
    for line in f.readlines():
        line = line.strip()
        map.append(list(line))
HEIGHT = len(map)
WIDTH = len(map[0])

def isSymbol(c):
    # desda karakter geen nummer of punt is
    return c != '.' and (c < '0' or c > '9')
def toevoegen(x, y):
    # desda (x, y) aangrenzend is aan een symbool
    for xi in range(x-1, x+2):
        for yi in range(y-1, y+2):
            xi = min(max(xi, 0), WIDTH-1)
            yi = min(max(yi, 0), HEIGHT-1)
            if isSymbol(map[yi][xi]):
                return True
    return False

teller = 0
nummer = 0
adding = False
for y in range(HEIGHT):
    for x in range(WIDTH):
        try:
            n = int(map[y][x])
            nummer *= 10
            nummer += n
            if toevoegen(x, y):
                adding = True
        except Exception as e:
            if adding:
                teller += nummer
            adding = False
            nummer = 0
print(teller)