Find the sum of all those numbers which can be formed by the digits 2,3,4 and 5.

Explanation

To find the sum of all the numbers that can be formed using the digits 2, 3, 4, and 5, we can follow these steps:

### Step-by-Step Solution:

1. **Determine the Total Number of Digits**:
We have four digits: 2, 3, 4, and 5. We can form numbers with 1-digit, 2-digit, 3-digit, and 4-digit combinations.

2. **Calculate the Number of Permutations**:
...