#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;} char wbuf[1<<28]; #define WT(v) {long _z=v,_n=0,_d=0;while(++_n,_d=_d<<8|0x30|_z%10,_z/=10);*(long*)wp=_d;wp+=_n;} a[200000]; b[200000]; main(){ char*rp=mmap(0l,1l<<28,1,2,0,0ll); RD(n); char*wp=wbuf; int an=0; for(int i=0;i