#include <stdio.h>
int hoge(int n, int m){
int sum=0;
int i;
if(n<=m){
for(i=n;i<=m;i++)
{
sum=sum+i;
if (i==m) {
}
}
}
else {
for(i=n;i>=m;i--)
{
sum=sum+i;
if (i==n) {
}
}
}
}
return sum;
}
int main(){
return(0);
}
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