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

#define rd_init() char*rp=({char*mmap();mmap(0l,1l<<25,1,2,0,0ll);})
#define rd() ({int _v=0,_c;while(_c=*rp++-48,_c>=0)_v=_v*10+_c;_v;})
#define wt(v) ({unsigned _z=v;do*--wp=_z%10+48;while(_z/=10);})
#define wt1(v) ({char wbuf[64],*wp=wbuf+sizeof wbuf;wt(v);write(1,wp,wbuf+sizeof wbuf-wp);})
#define repeat(e) for(typeof(e)_=e;_--;)

int main(){
	rd_init();
	int n=rd();
	int m=rd();
	int z=0;
	repeat(n){
		int a=*(int*)rp!='oooo';
		rp+=m+1;
		int b=rd()>=1200;
		z+=a&b;
	}
	wt1(z);
	_exit(0);
}