6.30 (Game: craps) Craps is a popular dice game played in casinos. Write a program to play a variation of the game, as follows:

Roll two dice. Each die has six faces representing values 1, 2, . . ., and 6, respec- tively. Check the sum of the two dice. If the sum is 2, 3, or 12 (called craps), you lose; if the sum is 7 or 11 (called natural), you win; if the sum is another value (i.e., 4, 5, 6, 8, 9, or 10), a point is established. Continue to roll the dice until either a 7 or the same point value is rolled. If 7 is rolled, you lose. Otherwise, you win.

Your program acts as a single player. Here are some sample runs.

```
You rolled 5 + 6 = 11
You win
You rolled 1 + 2 = 3
You lose
You rolled 4 + 4 = 8
point is 8
You rolled 6 + 2 = 8
You win
You rolled 3 + 2 = 5
point is 5
You rolled 2 + 5 = 7
You lose
```