#include using namespace std; ifstream in("grupapregatitoare.in"); ofstream out("grupapregatitoare.out"); long long int n, p, suma = 0, flag = 0, minim = 20000; long long int secpar = 0, secimp = 0, lp = 0, li = 0; long long int x, y, nr1, nr2, maxim, lungi, lungp; int main() { in >> n >> p; for (int i = 1; i <= n; i++) { in >> x >> y; if (x > y) suma = suma + x; else suma = suma + y ; if (((x % p == 0) && (x >= y)) || ((y % p == 0) && (y >= x))) flag = 1; if ((x % p == 0) && (x < y) && (y - x < minim)) { minim = y - x; nr1 = x; nr2 = y; } if ((y % p == 0) && (y < x) && (x - y < minim)) { minim = x - y; nr1 = y; nr2 = x; } if ((x % 2 == 0 ) || (y % 2 == 0)) secpar++; else { if (lp == 0) { lungp = secpar; lp = 1; } if (secpar > maxim) maxim = secpar; secpar = 0; } if ((x % 2 == 1) || (y % 2 == 1)) secimp++; else { if (li == 0) { lungi = secimp; li = 1; } if (secimp > maxim) maxim = secimp; secimp = 0; } } if (secpar + lungp > maxim) maxim = secpar + lungp; if (secimp + lungi > maxim) maxim = secimp + lungi; if (flag == 1) out << suma; else out << suma - nr2 + nr1; out << "\n" << maxim; return 0; }