#pragma GCC optimize("Ofast") #pragma GCC optimize("unroll-loops") #pragma GCC optimize("inline") #include using namespace std; inline int my_getchar_unlocked(){ static char buf[1048576]; static int s = 1048576; static int e = 1048576; if(s == e && e == 1048576){ e = fread_unlocked(buf, 1, 1048576, stdin); s = 0; } if(s == e){ return EOF; } return buf[s++]; } inline void rd(int &x){ int k; int m=0; x=0; for(;;){ k = my_getchar_unlocked(); if(k=='-'){ m=1; break; } if('0'<=k&&k<='9'){ x=k-'0'; break; } } for(;;){ k = my_getchar_unlocked(); if(k<'0'||k>'9'){ break; } x=x*10+k-'0'; } if(m){ x=-x; } } struct MY_WRITER{ char buf[1048576]; int s; int e; MY_WRITER(){ s = 0; e = 1048576; } ~MY_WRITER(){ if(s){ fwrite_unlocked(buf, 1, s, stdout); } } } ; MY_WRITER MY_WRITER_VAR; void my_putchar_unlocked(int a){ if(MY_WRITER_VAR.s == MY_WRITER_VAR.e){ fwrite_unlocked(MY_WRITER_VAR.buf, 1, MY_WRITER_VAR.s, stdout); MY_WRITER_VAR.s = 0; } MY_WRITER_VAR.buf[MY_WRITER_VAR.s++] = a; } inline void wt_L(char a){ my_putchar_unlocked(a); } inline void wt_L(int x){ int s=0; int m=0; char f[10]; if(x<0){ m=1; x=-x; } while(x){ f[s++]=x%10; x/=10; } if(!s){ f[s++]=0; } if(m){ my_putchar_unlocked('-'); } while(s--){ my_putchar_unlocked(f[s]+'0'); } } inline void wt_L(const char c[]){ int i=0; for(i=0;c[i]!='\0';i++){ my_putchar_unlocked(c[i]); } } char A[500][502]; int main(){ int i; int N; rd(N); for(i=(0);i<(N/2);i++){ int j; for(j=(i+1);j<(N/2);j++){ A[2*i][2*j]=A[2*i][2*j+1]=A[2*i+1][2*j]=A[2*i+1][2*j+1]=2; } } for(i=(0);i<(N/2);i++){ A[2*i][2*i+1] = 1; A[2*i+1][2*i] = A[2*i+1][2*i+1] = 2; } for(i=(0);i<(N);i++){ int j; for(j=(0);j<(N);j++){ A[i][j] += '0'; } } { int KrdatlYV; for(KrdatlYV=(0);KrdatlYV<(N);KrdatlYV++){ wt_L(A[KrdatlYV]); wt_L('\n'); } } return 0; } // cLay version 20210708-1 // --- original code --- // char A[500][502]; // { // int @N; // rep(i,N/2) rep(j,i+1,N/2) A[2i][2j]=A[2i][2j+1]=A[2i+1][2j]=A[2i+1][2j+1]=2; // rep(i,N/2) A[2i][2i+1] = 1, A[2i+1][2i] = A[2i+1][2i+1] = 2; // rep(i,N) rep(j,N) A[i][j] += '0'; // wtLn(A(N)); // }