#include <stdio.h>
#include <stdlib.h>
int main()
{
int a;
int b;
int i;
int sum=0;
scanf ("%d %d %d",&a
,&b
,&i
); while (i<=a&&a<b&&b<=5000)
{
while (a<b)
{
if (a%2==0)
a++;
sum=sum+a;
a++;
}
printf("The sum of odd numbers from a to b is: %d", sum
); }
return 0;
}
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