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int A[1024][1024];
int B[1024];
int C[1024];
void mv(int n, int A[][1024], int B[], int C[])
{
int i, k;
i = 0;
while (i < n)
{
C[i] = 0;
i = i + 1;
}
i = 0;
k = 0;
while (k < n)
{
i = 0;
while (i < n) //L8
{
C[i] = C[i] + A[k][i] * B[i];
i = i + 1;
}
k = k + 1;
}
}
int main()
{
int n = getint();
int i, j;
i = 0;
j = 0;
while (i < n)
{
j = 0;
while (j < n)
{
A[i][j] = getint();
j = j + 1;
}
i = i + 1;
}
i = 0;
j = 0;
while (i < n)
{
B[i] = getint();
i = i + 1;
}
starttime();
i = 0;
while (i < 500)
{
mv(n, A, B, C);
mv(n, A, C, B);
i = i + 1;
}
int ans = 0;
i = 0;
while (i < n)
{
j = 0;
while (j < n)
{
ans = ans + B[i];
j = j + 1;
}
i = i + 1;
}
stoptime();
putint(ans);
putch(10);
return 0;
}
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