10021 + 10022 + 10023 + 10024 + 10025 + 10026 + 10027 + 10028 + 10029 + 10030 = (10021+10029) + (10022+10028) + (10023+10027) + (10024+10026) + 10030 + 10025 = 20050 + 20050 +20050 + 20050 + 20055 = 100255
10021 + 10022 + 10023 + 10024 + 10025 + 10026 + 10027 + 10028 + 10029 + 10030 = (10021+10029) + (10022+10028) + (10023+10027) + (10024+10026) + 10030 + 10025 = 20050 + 20050 +20050 + 20050 + 20055 = 100255