#include <assert.h>
void reach_error(void) {assert(0);}

extern int __VERIFIER_nondet_int(void);
extern _Bool __VERIFIER_nondet_bool(void);

void __VERIFIER_assert(int cond) {
  if (!cond) {
    reach_error();
  }
}

/* 21.cfg:
names= x y
precondition= y>0 || x>0
loopcondition=1
realloopcondition=x+y<=2
branchcondition=x+y>-2
branch=break;
branchcondition=x>0
branch=x++;
branchcondition=
branch=y++;
postcondition=x>0 || y>0
learners=conj disjunctive
*/
int main() {
  int x = __VERIFIER_nondet_int();
  int y = __VERIFIER_nondet_int();
  if (!(y>0 || x>0)) return 0;
  while (1) {
    if (x+y>-2) {
      break;
    }
    if (x>0) {
      x++;
    } else {
      y++;
    }
  }
  __VERIFIER_assert(x>0 || y>0);
  return 0;
}