#include <stdio.h>
int main(void) {
int a,b,c;
int count=0;
scanf("%d %d %d",&a
,&b
,&c
); if(a>=80){
count++;
}if(b>=80){
count++;
}if(c>=80){
count++;
}if(count>=2){
}else{
}
return 0;
}
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