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const int N = 1024;
void transpose(int n, int A[][N], int B[][N]) {
int i = 0;
i = 0;
while (i < n) {
int j = 0;
while (j < n) {
B[i][j] = A[j][i];
j = j + 1;
}
i = i + 1;
}
}
int A[N][N];
int B[N][N];
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;
}
starttime();
i = 0;
while (i < 500) {
transpose(n, A, B);
transpose(n, B, A);
i = i + 1;
}
int ans = 0;
i = 0;
while (i < n){
j = 0;
while (j < n){
ans = ans + B[i][j];
j = j + 1;
}
i = i + 1;
}
stoptime();
putint(ans);
putch(10);
return 0;
}
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