输入1:
22
11
11
输出1:
0
输入2:
22
12
21
输出2:
2
importjava.util.Scanner;
publicclassMain{
publicstaticvoidmain(String[]args){
//TODOAuto-generatedmethodstub
Scannersc=newScanner(System.in);
intn=sc.nextInt();
intm=sc.nextInt();
int[]a=newint[n];
int[]b=newint[m