#pragma GCC optimize("Ofast")
#pragma GCC target("avx2")

char*mmap();
#define RD(v) int v=0;{int _c;while(_c=*rp++-48,_c>=0)v=v*10+_c;}

main(){
	char*rp=mmap(0l,1l<<28,1,2,0,0ll);
	while(*rp++!=32);
	RD(d);
	while(*rp++!=10);
	long s=0;
	do{
		RD(v);
		s+=v;
	}while(*rp);
	printf("%d",(d-1)/s+1);
}