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#include <iostream>
#include <cmath>
using namespace std;
int main()
{
// задача В
int x, y;
cin >> x >> y;
int ch = 0;
if (x > 0) {
if (y > 0) {
ch = 1;
}
if (y < 0) {
ch = 4;
}
}
if (x < 0) {
if (y > 0) ch = 2;
else ch = 3;
}
int x2, y2;
cin >> x2 >> y2;
int ch2 = 0;
if (x2 > 0) {
if (y2 > 0) {
ch2 = 1;
}
if (y2 < 0) {
ch2 = 4;
}
}
if (x2 < 0) {
if (y2 > 0) ch2 = 2;
else ch2 = 3;
}
if (ch == ch2); // to do;
}
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