#include int main(){ int n,m,a=1,x=0,y=0,s; scanf("%d%d",&n,&s);m=n-1;x=s; while(m--){ scanf("%d",&s); if(s-x)y=s0&&(a=n-a);if(y)printf("%d %d",a,n-a); else{a=x-n*2+2?0:n;printf("%d %d",a,n-a);} return 0; }