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#include <stdbool.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#define N 1000
bool isnum(char c) { return c >= '0' && c <= '9'; }
bool issymbol(char c) { return c != '.' && c != 0 && c != '\n' && !isnum(c); }
int grab(char *buf) {
int x;
if (!isnum(*buf))
return 0;
while (isnum(*buf)) buf--;
buf++;
x = atoi(buf);
while (isnum(*buf)) *buf++ = '.';
return x;
}
int main() {
char line[N], prev[N];
bool l, c, r, ul, uc, ur;
int i, sum;
sum = 0;
memset(line, '.', N);
memset(prev, '.', N);
while (fgets(&line[1], N-1, stdin) != NULL) {
for (i = 1; line[i]; i++) {
l = issymbol(line[i-1]);
c = issymbol(line[i]);
r = issymbol(line[i+1]);
ul = issymbol(prev[i-1]);
uc = issymbol(prev[i]);
ur = issymbol(prev[i+1]);
if (l || r || ul || uc || ur)
sum += grab(&line[i]);
if (l || c || r)
sum += grab(&prev[i]);
}
memcpy(prev, line, N);
}
printf("%d\n", sum);
return 0;
}
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