#include <stdio.h>
int sigma(int n)
{
    int i=0,sum=0;
    while(i<=n)
    {
        i++;
        sum=sum+i;
        }
        return sum;
        }
        
        int main(void)
        {
            int m,total;
            scanf=("%d",&m);
            total=sigma(m);
            printf("the total is:%d",total);
            return 0;
                        }

int main(void)
        {
            int m,total;
            scanf=("%d",&m);//改为scanf("%d",&m);
            total=sigma(m);
            printf("the total is:%d",total);
            return 0;
                        }

#include <stdio.h>
int sigma(int n)
{
    int i=0,sum=0;
    while(i<=n)
    {
        i++;
        sum=sum+i;
        }
        return sum;
        }
        
        int main(void)
        {
            int m,total;
            scanf=("%d",&m);//scanf后面不要用=
            total=sigma(m);
            printf("the total is:%d",total);
            return 0;
                        }

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