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#include <cstdio>
char pal[3][3][5]={{"P",".","."},
                {"PA","PP","."},
                {"NIE","PPA","PPP"}};
char pat[10]={"APAAPP"};
int main(){
    int t,n,k,p;
    scanf("%d",&t);
    while(t--){
        scanf("%d %d",&n,&k);
        if(n<=3){
            printf("%s\n",pal[n-1][k-1]);
            continue;
        }
        if(n == 7 && k == 3){
            printf("AAPAPPP\n");
            continue;
        }
        if(n == 8 && k == 3){
            printf("AAAPAPPP\n");
            continue;
        }
        if(n>=9){
            if(k<4){
                printf("NIE");
            }else{
                int p=0;
                for(int i=1; i<=n; i++){
                    if(i<=k)
                        printf("P");
                    else
                        printf("%c",pat[ (p++) % 6]);

                }

            }
            printf("\n");
            continue;
        }
        p = n / 2;
        if( n%2 == 1)
            p++;
        if(k<p)
            printf("NIE\n");
        else {
            for(int j=1; j<=n; j++){
                if( j<=k )
                    printf("P");
                else
                    printf("A");
            }
            printf("\n");
        }
    }
    return 0;
}