Shell Salad

1 - 1lb box small shell macaroni
2/3 Cup Sugar
2/3 Cup Vinegar
2/3 Cup Oil
1 Onion
2 Green Peppers
2 Cucumbers
1 Jar sliced pimentos
1 Can Tomato Soup

Cook macaroni - add to mixture of sugar, vinegar, oil and soup. Let stand at least 24 hours in refrigerator. Add chopped vegetables about 1 hour before serving.