import java.math.BigDecimal;
import java.util.Arrays;
import java.util.HashSet;
import java.util.LinkedList;
import java.util.Scanner;
import java.util.Set;

public class Main {
	
	public static class Value {
		long val, zero;
		
		
		public Value(long val, long zero){
			//System.out.println(val);
			this.val = val;
			this.zero = zero;
		}
		
		public Value(long val){
			this(val, 0);
		}
		
		public Value(Value v){
			this(v.val, v.zero);
		}
		
		public static Value mul(Value a, Value b){
			long value = a.val * b.val;
			long zero = a.zero + b.zero;
			
			final long MOD = 10000000000L;
			//System.out.println(value + " " + MOD + " " + (value >= MOD) + " " + (value / MOD));
			
			if(value > MOD){
				value /= MOD;
				zero += 10;
			}
			
			return new Value(value, zero);
		}
		
		public String toString(){
			String str = Long.toString(this.val);
			//System.out.println(str);
			
			return str.charAt(0) + " " + (str.length() == 1 ? "0" : str.charAt(1)) + " " + (this.zero + Math.max(0, str.length() - 1)) ;
		}
	}
	
	public static Value pow(Value A, long B){
		if(B == 1){ return new Value(A); }
		if(B % 2 != 0){ return Value.mul(A, pow(A, B - 1)); }
		
		//System.out.println("A = " + A);
		//System.out.println("B = " + B);
		final Value ret = pow(A, B / 2);
		//System.out.println("RET = " + ret);
		
		return Value.mul(ret, ret);
	}
	
	public static void main(String[] args){
		Scanner sc = new Scanner(System.in);
		
		final int N = sc.nextInt();
		
		for(int tt = 0; tt < N; tt++){
			final long A = sc.nextLong();
			final long B = sc.nextLong();
			
			System.out.println(pow(new Value(A), B));
		}
		
	}
	
}