#include"cstdio"
int run(int y){return(y%4= =0&&y%100!=0||y%400= =0)?true:false;}
int big(int m){return(m<=7&&m%2!=0||m>=8&&m%2= =0)?true:false;}
int main(){
int m,d,y;
scanf("%d %d %d",&m,&d,&y);
if(m= =12&&d= =31)printf("%d/%d/%d",1,1,y+1);
else if(m= =2){
if(run(y)){
if(d= =29)printf("%d/%d/%d",3,1,y);
else printf("%d/%d/%d",2,d+1,y);
}else{
if(d= =28)printf("%d/%d/%d",3,1,y);
else printf("%d/%d/%d",2,d+1,y);
}
}else{
if(big(m)){
if(d= =31)printf("%d/%d/%d",m+1,1,y);
else printf("%d/%d/%d",m,d+1,y);
}else{
if(d= =30)printf("%d/%d/%d",m+1,1,y);
else printf("%d/%d/%d",m,d+1,y);
}
}
}