#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 repeat(e) for(typeof(e)_=e;_--;) char wbuf[1<<25]; int main(){ char*wp=wbuf; rd_init(); int t=rd(); repeat(t){ int n=rd(); int f=0; repeat(n){ int a=rd(); int b=rd(); int c=rd(); int d=rd(); int e=rd(); f|=a!=c|b!=d|b!=e|a==b; } if(f){ *wp++='N'; *wp++='o'; }else{ *wp++='Y'; *wp++='e'; *wp++='s'; } *wp++='\n'; } write(1,wbuf,wp-wbuf); _exit(0); }