#include int main(void){ int i, N, l, l1, l2 = 0, t = 1; scanf("%d", &N); scanf("%d", &l1); for(i=1;il2){ printf("%d %d\n", t, N-t); }else{ printf("%d %d\n", N-t, t); } }else{ if(l1==(N-1)*2){ printf("%d 0\n", t); }else{ printf("0 %d\n", t); } } return 0; }