#!/usr/bin/env python3
import sys

grid = []
for l in sys.stdin:
    grid.append([int(x) for x in l.strip()])


def lowest(r, c):
    pt = grid[r][c]
    if r > 0 and grid[r - 1][c] <= pt:
        return False
    if c > 0 and grid[r][c - 1] <= pt:
        return False
    if c < 99 and grid[r][c + 1] <= pt:
        return False
    if r < 99 and grid[r + 1][c] <= pt:
        return False
    return True


risk = 0
for r in range(100):
    for c in range(100):
        if lowest(r, c):
            risk += grid[r][c] + 1

print(risk)