Sum of even elements and sum odd elements in an array using function

#include<stdio.h>

int oddevensum(int a[], int size)
{
int odd=0 , even=0 , i;
for(i=0;i<size;i++)
{
if(a[i]%2==0)
even=even+a[i];
else
odd=odd+a[i];
}

printf(" SUM of EvEN numbers : %d",even);
printf(" \n SUM of Odd numbers : %d",odd);

}

int main()
{
int size , i , a[100] , sumeven=0,sumodd=0;

printf(" Enter the size of the array elements : ");
scanf("%d",&size);

printf("\n Enter the array elements : ");
for(i=0;i<size;i++)
{
scanf("%d",&a[i]);
}
sumeven=oddevensum(a,size);
sumodd=oddevensum(a,size);

//printf(" \n The sum of the even numbers : %d",sumeven);
//printf(" \n The sum of the odd numbers : %d",sumodd);

return 0;
}

OUTPUT :