#include<iostream>
#include<string>
#include<algorithm>
using namespace std;
int main(){
int a,b,c;
char aa[2];
cin>>a>>aa[0]>>b>>aa[1]>>c;
if(c>29 && (b==1 || b==3 || b==5 || b==7 || b==8 ||b==10 || b==12)){
	c=(c+2)%31;
	b++;
}else if(c>28 && ( b==4 || b==6 || b==9 ||b==11)){
	c=(c+2)%30;
	b++;
}else if(c>26 && b==2 &&(a%4!=0 || (a%4==0 && a%100==0 && a%400!=0))){
	c=(c+2)%28;
	b++;
}else if(c>27 && b==2 &&(a%4==0 && (a%100!=0 || a%400==0))){
	c=(c+2)%29;
	b++;
}else{
	c=c+2;
}
if(b>12){
	a++;
	b=1;
}
cout<<a<<aa[0];
if(b<10){
	cout<<'0'<<b<<aa[1];
}else{
	cout<<b<<aa[1];
}
if(c<10){
	cout<<'0'<<c<<endl;
}else{
	cout<<c<<endl;
}

}