import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.StringTokenizer;
public class lightoj1088 {
static int binarysearchlower(int[] arr, int key){
int begin = 0;
int end = arr.length - 1;
int index = -1;
while(begin<=end){
int mid = (begin+end)/2;
if(key <= arr[mid]){
index = mid;
end = mid - 1;
}else if(key>arr[mid]){
begin = mid + 1;
}else{
end = mid - 1;
}
}
return index;
}
static int binarysearchupper(int[] arr, int key){
int begin = 0;
int end = arr.length - 1;
int index = -1;
while(begin<=end){
int mid = (begin+end)/2;
if(key >= arr[mid]){
index = mid;
begin = mid + 1;
}else if(key>arr[mid]){
begin = mid + 1;
}else{
end = mid - 1;
}
}
return index;
}
static class FastReader {
public FastReader()
{
}
{
while (st == null || !st.hasMoreElements()) {
try {
}
e.printStackTrace();
}
}
return st.nextToken();
}
int nextInt
() { return Integer.
parseInt(next
()); }
long nextLong
() { return Long.
parseLong(next
()); }
double nextDouble()
{
return Double.
parseDouble(next
());
}
{
try {
if(st.hasMoreTokens()){
str = st.nextToken("\n");
}
else{
str = br.readLine();
}
}
e.printStackTrace();
}
return str;
}
}
FastReader s = new FastReader();
int t = s.nextInt();
int up, low, lowindex, upindex;
for(int j=1;j<=t;j++){
int n = s.nextInt();
int q = s.nextInt();
int[] arr = new int[n];
for(int i=0;i<n;i++){
arr[i] = s.nextInt();
}
System.
out.
println("Case "+j
+":");
for(int i=0;i<q;i++){
low = s.nextInt();
up = s.nextInt();
lowindex = binarysearchlower(arr,low);
upindex = binarysearchupper(arr,up);
// System.out.println("Low index: "+lowindex+" Up index: "+upindex);
System.
out.
println((upindex
-lowindex
)+1);
}
}
}
{"html5":"htmlmixed","css":"css","javascript":"javascript","php":"php","python":"python","ruby":"ruby","lua":"text\/x-lua","bash":"text\/x-sh","go":"go","c":"text\/x-csrc","cpp":"text\/x-c++src","diff":"diff","latex":"stex","sql":"sql","xml":"xml","apl":"apl","asterisk":"asterisk","c_loadrunner":"text\/x-csrc","c_mac":"text\/x-csrc","coffeescript":"text\/x-coffeescript","csharp":"text\/x-csharp","d":"d","ecmascript":"javascript","erlang":"erlang","groovy":"text\/x-groovy","haskell":"text\/x-haskell","haxe":"text\/x-haxe","html4strict":"htmlmixed","java":"text\/x-java","java5":"text\/x-java","jquery":"javascript","mirc":"mirc","mysql":"sql","ocaml":"text\/x-ocaml","pascal":"text\/x-pascal","perl":"perl","perl6":"perl","plsql":"sql","properties":"text\/x-properties","q":"text\/x-q","scala":"scala","scheme":"text\/x-scheme","tcl":"text\/x-tcl","vb":"text\/x-vb","verilog":"text\/x-verilog","yaml":"text\/x-yaml","z80":"text\/x-z80"}