#include <stdio.h>
int main(){
int hour,minute;
if (scanf("%d:%d",&hour,&minute)!=EOF){
// 分析不敲钟的时间
if (hour<12 ||(hour==12 && minute==0)){
printf("Only %02d:%02d. Too early to Dang.",hour,minute);
}else{
if (minute>0){
for (int i=0;i<=hour-12;i++){printf("Dang");}
}
if (minute==0){
for (int i=0;i<hour-12;i++){printf("Dang");}
}
}
}
else{
printf("input wrong");
}
return 0;
}
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