public class demo {
public static void main(String[] args) {
int count=
0;
for(
int i=
10000;i<=
99999;i++){
int ge=i%
10;
int shi=i/
10%
10;
int bai=i/
100%
10;
int qian=i/
1000%
10;
int wan=i/
10000;
if((ge!=
4) && (shi!=
4) && (bai!=
4) && (qian!=
4) && (wan!=
4)){
count++;
}
}
System.
out.println(count);
}
}
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