public class App15 {
static long jiecheng(long n) {
if(n == 1)
return 1;
return n * jiecheng(n - 1);
}
public static void main(String[] args) {
long n = 6;
long m = 7;
long num = jiecheng(n) * jiecheng(m);
System.out.println(num);
}
}
static long jiecheng(long n) {
if(n == 1)
return 1;
return n * jiecheng(n - 1);
}
public static void main(String[] args) {
long n = 6;
long m = 7;
long num = jiecheng(n) * jiecheng(m);
System.out.println(num);
}
}
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