#include<stdio.h>
#include<string.h>
#include<time.h>
#include<stdlib.h>


int main(){
    char Dnes_Datum[30];
    struct tm *D_D;
    struct tm *NW_D;
    //fgets(Dnes_Datum,30,stdin);
    //int Day=0,Mon=0,Year=0;
    //scanf("%d %d %d",&Day,&Mon,&Year);
    int ch=getchar();
    for(int idx=0;ch!='\n';idx++){
        if(ch=='.'){
            ch=' ';
        }
        Dnes_Datum[idx]=ch;
        ch=getchar();
    }

    char *start=Dnes_Datum, *end=NULL;
    time_t t=time(NULL);
    D_D = localtime(&t);

    D_D->tm_mday=strtol(start,&end,10);
    start=end;
    D_D->tm_mon=strtol(start,&end,10)-1;
    start=end;
    D_D->tm_year=strtol(start,&end,10)-1900;

    time_t nex_week=mktime(D_D)+604800;

    NW_D=localtime(&nex_week);

    printf("%d.%d.%d\n",NW_D->tm_mday, NW_D->tm_mon+1,NW_D->tm_year+1900);
    return EXIT_SUCCESS;
}