void main(){
  import std.stdio, std.string, std.conv, std.algorithm;
  import std.range;

  int n; rd(n);
  auto v=new int[](n), w=new int[](n);
  foreach(i; 0..n) rd(v[i], w[i]);
  int vmax; rd(vmax);

  auto rec=new int[](100002);
  const inf=1000000;
  fill(rec, inf);
  rec[0]=0;
  foreach(i; 0..n)for(int j=100001; j>=0; j--){
    if(j>0) chmin(rec[j-1], rec[j]);
    if(j+v[i]<=100001) chmin(rec[j+v[i]], rec[j]+w[i]);
  }

  assert(rec[vmax]<inf);
  writeln(max(1, rec[vmax]));
  if(rec[vmax+1]<inf) writeln(rec[vmax+1]-1);
  else writeln("inf");
}

void chmin(T)(ref T x, T y){
  if(x>y) x=y;
}

void rd(T...)(ref T x){
  import std.stdio, std.string, std.conv;
  auto l=readln.split;
  assert(l.length==x.length);
  foreach(i, ref e; x){
    e=l[i].to!(typeof(e));
  }
}