#include <stdio.h>
int main(){
int begin_hour;
int begin_minute;
int end_hour;
int end_minute;
if (scanf("%d:%d",&begin_hour,&begin_minute)!=EOF){
if (scanf("%d:%d",&end_hour,&end_minute)!=EOF){
int minute = end_minute -begin_minute;
int hour = end_hour - begin_hour;
if (minute<0){minute = minute+60;hour = hour-1;}
printf("%d %d",hour,minute);
}else{printf("input wrong");}
//printf("%d %d",a,b);
}else{
printf("input wrong");
}
return 0;
}
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