#include <cstdio> int main() { int b1, n1, b2, n2; double m1, m2; scanf("%d%d%lf", &b1, &n1, &m1); scanf("%d%d%lf", &b2, &n2, &m2); double x = n1 * m1 + n2 * m2; printf("VALOR A PAGAR: R$ %.2lf", x); return 0; }