#include <bits/stdc++.h>
using namespace std;
 
int main() {
	// your code goes here
	int t;
	cin>>t;
	while(t--){
	  int n,q;
	  cin>>n>>q;
	  string s;
	  cin>>s;
	  int l, r,cur=0;
	  double x=0,y=0;
	  for(int i=0;i<q;i++){
	      cin>>l>>r;
	      x=0;y=0;cur=0;
	      for(int j=l-1;j<r;j++){
	          int an = s[j]-'0';
	          cur+=an*60;
	          cur=cur%360;
	          x=x+cos(cur*3.14159265/180);
	          y=y+sin(cur*3.14159265/180);
	      }
	      cout<<fixed<<setprecision(8)<<x<<" ";
	      cout<<fixed<<setprecision(8)<<y<<endl;
	  }
	}
	return 0;
}

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MQozIDMKMDEyCjEgMQoxIDIKMiAyCg==

1
3 3
012
1 1
1 2
2 2