PROGRAMMING:C programming experiment 3-1
Calculate the value of 1 + 3 + 5 + 7 + $$... $$+ 99 + 101.
###Input format:
No input is required.
###Output format:
Output the accumulated results in the form of output examples.
###Input example:
```in
```
###Output example:
```out
sum=2601
```
answer：If there is no answer, please comment
###Input format:
No input is required.
###Output format:
Output the accumulated results in the form of output examples.
###Input example:
```in
```
###Output example:
```out
sum=2601
```
answer：If there is no answer, please comment