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#include<iostream>

std::string wyn[4]={"AP","AAPP","AAAPAPPP","APAAPP"};
int main(){
	int t, n, k;
	std::cin>>t;
	for(int tt=0;tt<t;tt++){
		std::cin>>n>>k;
		if((k==1&&n>2)||(k==2&&n>4)||(k==3&&n>8)){
			std:: cout<<"NIE"<<std::endl;
			continue;
		}
		if(k<4){
			for(int i=0;i<n;i++)
				std::cout<<wyn[k-1][i];
			std::cout<<std::endl;
		}else{
		for(int i=0;i<k;i++){
			std::cout<<'P';
		}
		for(int i=0;i<n-k;i++)
			std::cout<<wyn[3][i%6];
		}
		std::cout<<std::endl;
	}
}