1074 : 4 Buttons
Time Limit: 5 Sec Memory Limit: 512 MB Submitted: 254 Solved: 101Description
Bobo lives in an infinite chessboard. Initially he locates at (0, 0). There are 4 buttons.
- When the first button is pressed, Bobo moves right for at most a cells.
- When the second button is pressed, Bobo moves up for at most b cells.
- When the third button is pressed, Bobo moves left for at most c cells.
- When the fourth button is pressed, Bobo moves down for at most d cells.
Find the number of cells Bobo can reach modulo (109 + 7), if he presses the buttons for no more than n times.
Input
The input consists of several test cases and is terminated by end-of-file.
Each test case contains five integers n, a, b, c and d.
- 1 ≤ n, a, b, c, d ≤ 109
- The number of test cases does not exceed 105.
Output
For each test case, print an integer which denotes the result.
Sample
1 1 2 3 4 2 1 1 1 1 1000000000 1000000000 1000000000 1000000000 1000000000
11 13 5685
Hint
For the first test case, Bobo can reach the following 11 cells: ( − 3, 0), ( − 2, 0), ( − 1, 0), (0, − 4), (0, − 3), (0, − 2), (0, − 1), (0, 0), (0, 1), (0, 2), (1, 0).
Author
ftiasch