#include <stdio.h>
int main() {
int f, e[3], aux=0;
scanf("%d", &f);
for(int i=0; i<3; i++){
scanf("%d", &e[i]);
}
for(int i=0; i<3-1; i++){
for(int j=0; j<3-1-i; j++){
if(e[j]>e[j+1]){
aux=e[j];
e[j]=e[j+1];
e[j+1]=aux;
}
}
}
if(f >= e[0]+e[1]+e[2]){
printf("3");
}
else if(f >= e[0]+e[1]){
printf("2");
}
else if(f >= e[0] ){
printf("1");
}
else{
printf("0");
}
return 0;
}
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