#include
int sums(int i,int j,int k){
return i+j+k;
}
int differences(int i,int j,int k){
return i-j-k;
}
int main(){
int a,b,c;
int sum, difference;
scanf("%d %d %d",&a,&b,&c);
sum = sums(a,b,c);
difference = differences(a,b,c);
return 0;
}
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