import java.io.IOException;
import java.io.InputStream;
import java.util.Arrays;
import java.util.HashMap;
import java.util.Map;
import java.util.NoSuchElementException;

class Main {
	public static void main(String[] args) throws Exception {
		new Main().run();
	}
	
	void run() {
		Scanner sc=new Scanner();
		int N=sc.nextInt();
		int M=sc.nextInt();
		long K=sc.nextLong();
		char op=sc.next().toCharArray()[0];
		long[] A=new long[N];
		long[] B=new long[M];
		for(int i=0;i<M;++i)B[i]=sc.nextLong();
		for(int i=0;i<N;++i)A[i]=sc.nextLong();
		Arrays.sort(A);
		Arrays.sort(B);
		long ans=0;
		if(op=='*') {
			for(int i=0;i<A.length;++i)A[i]=gcd(K,A[i]);
			for(int i=0;i<B.length;++i)B[i]=gcd(K,B[i]);
			HashMap<Long,Integer> ma=new HashMap<>();
			HashMap<Long,Integer> mb=new HashMap<>();
			for(int i=0;i<B.length;++i) {
				if(mb.containsKey(B[i]))mb.put(B[i], mb.get(B[i])+1);
				else mb.put(B[i], 1);
			}
			for(int i=0;i<A.length;++i) {
				if(ma.containsKey(A[i]))ma.put(A[i], ma.get(A[i])+1);
				else ma.put(A[i], 1);
			}
			for(Map.Entry<Long, Integer> a:ma.entrySet()) {
				for(Map.Entry<Long, Integer> b:mb.entrySet()) {
					if(a.getKey()*b.getKey()%K==0) {
						ans+=a.getValue()*b.getValue();
					}
				}
			}
		}else {
			for(int i=0;i<A.length;++i)A[i]%=K;
			for(int i=0;i<B.length;++i)B[i]%=K;
			HashMap<Long,Integer> ma=new HashMap<>();
			HashMap<Long,Integer> mb=new HashMap<>();
			for(int i=0;i<B.length;++i) {
				if(mb.containsKey(B[i]))mb.put(B[i], mb.get(B[i])+1);
				else mb.put(B[i], 1);
			}
			for(int i=0;i<A.length;++i) {
				if(ma.containsKey(A[i]))ma.put(A[i], ma.get(A[i])+1);
				else ma.put(A[i], 1);
			}
			for(Map.Entry<Long, Integer> a:ma.entrySet()) {
				if(mb.containsKey((K-a.getKey())%K))ans+=mb.get(K-a.getKey())*a.getValue();
			}
		}
		
		System.out.println(ans);
	}
	
	long gcd(long a,long b) {
		return a==0?b:gcd(b%a,a);
	}
	
	int binarySearch(long[] a,long key) {
		int ok=a.length;
		int ng=-1;
		while(ok-ng>1) {
			int middle=(ok+ng)/2;
			if(a[middle]>=key)ok=middle;
			else ng=middle;
		}
		return ok;
	}
	
	static void tr(Object... objects) {
		System.out.println(Arrays.deepToString(objects));
	}

}

class Scanner {
    private final InputStream in = System.in;
    private final byte[] buffer = new byte[1024];
    private int ptr = 0;
    private int buflen = 0;
    private boolean hasNextByte() {
        if (ptr < buflen) {
            return true;
        }else{
            ptr = 0;
            try {
                buflen = in.read(buffer);
            } catch (IOException e) {
                e.printStackTrace();
            }
            if (buflen <= 0) {
                return false;
            }
        }
        return true;
    }
    private int readByte() { if (hasNextByte()) return buffer[ptr++]; else return -1;}
    private static boolean isPrintableChar(int c) { return 33 <= c && c <= 126;}
    public boolean hasNext() { while(hasNextByte() && !isPrintableChar(buffer[ptr])) ptr++; return hasNextByte();}
    public String next() {
        if (!hasNext()) throw new NoSuchElementException();
        StringBuilder sb = new StringBuilder();
        int b = readByte();
        while(isPrintableChar(b)) {
            sb.appendCodePoint(b);
            b = readByte();
        }
        return sb.toString();
    }
    public long nextLong() {
        if (!hasNext()) throw new NoSuchElementException();
        long n = 0;
        boolean minus = false;
        int b = readByte();
        if (b == '-') {
            minus = true;
            b = readByte();
        }
        if (b < '0' || '9' < b) {
            throw new NumberFormatException();
        }
        while(true){
            if ('0' <= b && b <= '9') {
                n *= 10;
                n += b - '0';
            }else if(b == -1 || !isPrintableChar(b)){
                return minus ? -n : n;
            }else{
                throw new NumberFormatException();
            }
            b = readByte();
        }
    }
    public int nextInt() {
        long nl = nextLong();
        if (nl < Integer.MIN_VALUE || nl > Integer.MAX_VALUE) throw new NumberFormatException();
        return (int) nl;
    }
    public double nextDouble() { return Double.parseDouble(next());}
}