1. All appeals by the plaintiffs and the defendant are dismissed.

2. The costs of appeal shall be borne by each party.

purport, purport, and.

The grounds for appeal by the plaintiffs and the defendant in the judgment of the court of first instance are not significantly different from the allegations in the court of first instance, and even if each evidence submitted in the court of first instance is presented to this court, the fact-finding and judgment of the court of first instance are justified.

Accordingly, the reasoning for this Court regarding this case is as follows, given that the reasoning for the first instance judgment is the same as that for the foregoing case except for dismissal or addition as follows. Therefore, it is acceptable to accept this as it is by the main text of Article 420

In Part 8, "Plaintiff" in Part 19 of the 8th judgment of the first instance court shall be deemed to be "J of the plaintiffs' agents."

The "Plaintiffs" in the 5th sentence of the first instance judgment shall be referred to as "Defendant".

In Part 12 of the Decision of the first instance court, "The Details of Replacement" (No. 13) is followed, and "The Details of Replacement" in Part 12 of the Decision of the first instance shall be added to "The Details of Replacement" (No. 13).

In the third part of the decision of the first instance court, “However,” following the third part of the decision of the first instance, “However, since each of the instant construction contracts is a total contract in light of the terms and conditions of the contract, it is necessary to make a separate agreement between the plaintiffs who are the contractor and the defendant who is the contractor on the implementation of additional construction and the payment of additional construction costs.”

Therefore, the judgment of the first instance court is just, and the appeal by the plaintiffs and the defendant is dismissed as it is without merit.