#include <stdio.h>
int main(void){
    int value;
    int add = 1;
    int sum = 0;
    printf("Enter value: ");
    scanf("%d",&value);
    while(value != 0){
                sum = (sum + add);
                ++add;
                --value;
                printf("%d\n",sum);
    }
    printf("Sum: %d.\n",sum);
    system("PAUSE;");
    return 0;
}