2 
1941 1900 2000 
2005 1904 2040 
2 
1998 1900 2000 
1999 1900 2000 
3
1900 1900 2000
1901 1901 2000
1901 1899 1998
1
1901 1900 2000
10
1 1 2
2 1 3
3 1 4
4 1 5
5 1 6
6 1 7
7 1 8
8 1 9
9 1 10
10 1 11
0 

答案：
Case #1:
The actual year is 2141.

Case #2:
Unknown bugs detected.

Case #3:
The actual year is 2000.

Case #4:
The actual year is 1901.

Case #5:
The actual year is 2520.