I'm getting wrong answer c

help
, ,
1

You are given a number NN. Find the sum of all numbers from 11 to NN.

Input:

  • First-line will contain the number NN.

Output:

Print the answer in a single line.

Constraints

  • 1≤N≤1091≤N≤109

Sample Input 1:

4

Sample Output 1:

10

n=int(input())
abil=int((n*(n+1))/2)
print(abil)

2

n=int(input())
a=(((n*(n+1))/2)
print(a)

try this

3

n=int(input())
sum=((n*(n+1))/2)
print(sum)

4

int n;
scanf(“%d”, &n);
int sum=0;
sum= (((n*(n+1))/2);
printf(“%d”, sum);