whats wrong with my code?

fusr /bin/1d: cannot open cutput tile a, out: Peraission denied collect2: error: 16 returned 1 exit status - The value must be greater than 1000 and less than 100,000,000 (to ensure that there are between four and eight digits and that the integer is positive). - The last digit in the number (in the 1's place) must be even. The second-to-last digit (in the 10's place) in the number must be odd. The third-to-last digit (in the 100's place) in the number must be even. The fourth-to-last digit (in the 1000 's place) must be odd. This pattern should repeat until there are no more digits left. (In other words, the digit in the 10,000's place, if it exists, should be even. The digit in the 100,000 's place, if it exists, should be odd. The digit in the 1,000,000 's place, if it exists, should be even, and so on.) - The number representing the summation of the digits must