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#include <ctype.h>
#include <stdio.h>
#include <assert.h>
#include <errno.h>
#include <algds/vec.h>
#include <algds/str.h>
#define PANIC do { \
fprintf(stderr, "panic at %s:%d\n", __FILE__, __LINE__); \
abort(); \
} while (0)
void expect_char(char e) {
int c = fpeek(stdin);
if (c != e) {
PANIC;
}
fgetc(stdin);
}
void skip_space() {
while (1) {
int c = fpeek(stdin);
if (c == EOF) return;
if (c == ' ') {
fgetc(stdin);
} else {
return;
}
}
}
bool string2long(const char *s, long *num) {
char *end;
errno = 0;
*num = strtol(s, &end, 10);
if (end == s) {
return false;
}
if (errno != 0) {
return false;
}
return true;
}
int64_t parse_integer() {
long ret;
StrBuilder sb;
StrBuilder_init(&sb);
while (1) {
int c = fpeek(stdin);
if (isdigit(c)) {
fgetc(stdin);
StrBuilder_append_char(&sb, c);
} else {
break;
}
}
if (strlen(sb.buf) == 0) {
PANIC;
}
StrBuilder_append_char(&sb, '\0');
if (!string2long(sb.buf, &ret)) {
PANIC;
}
free(sb.buf);
return ret;
}
IntVector parse_ints() {
IntVector ints;
IntVector_init(&ints);
while (1) {
int c = fpeek(stdin);
if (isdigit(c)) {
int n = parse_integer();
IntVector_push_back(&ints, n);
skip_space();
} else if (c == '\n' || c == EOF) {
fgetc(stdin);
return ints;
} else {
PANIC;
}
}
return ints;
}
CharVector parse_syms() {
CharVector syms;
CharVector_init(&syms);
while (1) {
int c = fpeek(stdin);
if (c == '+' || c == '*') {
fgetc(stdin);
CharVector_push_back(&syms, c);
skip_space();
} else if (c == '\n' || c == EOF) {
return syms;
} else {
PANIC;
}
}
return syms;
}
VECTOR_DEF(IntVector)
VECTOR_IMPL(IntVector)
int main() {
IntVectorVector nums;
CharVector syms;
IntVectorVector_init(&nums);
while (1) {
skip_space();
int c = fpeek(stdin);
if (isdigit(c)) {
IntVector line = parse_ints();
IntVectorVector_push_back(&nums, line);
} else {
syms = parse_syms();
break;
}
}
int height = IntVectorVector_len(&nums);
long ret = 0;
for (int i = 0; i < CharVector_len(&syms); i++) {
if (syms.buffer[i] == '+') {
long r = 0;
for (int j = 0; j < height; j++) {
r += nums.buffer[j].buffer[i];
}
ret += r;
} else if (syms.buffer[i] == '*') {
long r = 1;
for (int j = 0; j < height; j++) {
r *= nums.buffer[j].buffer[i];
}
ret += r;
} else {
PANIC;
}
}
printf("%ld\n", ret);
for (int j = 0; j < height; j++) {
IntVector_free(nums.buffer + j);
}
IntVectorVector_free(&nums);
CharVector_free(&syms);
return 0;
}
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