Problem hidden
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HNDOM - Xếp hình 3D

Example

Input:
2 2 2 3
1 2
1 3
3 7
Output:
4
1 5
2 6
3 4
7 8

Được gửi lên bởi:noname00.pas
Ngày:2017-11-29
Thời gian chạy:0.5s
Giới hạn mã nguồn:50000B
Memory limit:1536MB
Cluster: Cube (Intel G860)
Ngôn ngữ cho phép:C-CLANG C CSHARP C++ 4.3.2 CPP CPP14 CPP14-CLANG C99 JAVA PAS-FPC PYTHON PYTHON3
Nguồn bài:Bài tập Ôn HN 01/2017 (Thầy Đỗ Đức Đông)

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