#include<stdio.h>

int a,b,c,d,a1,b1,c1,d1,s2,i,s=1,m,p;

int main()
{ 
    scanf("%d:%d", &a,&b);
     scanf("%d:%d", &c,&d);
      scanf("%d:%d", &a1,&b1);
       scanf("%d:%d", &c1,&d1);
       
       
    for(i=1;i<=10000;++i){
  if(a<c){  
    a=a+a1;
    if (a>=24){a=a-24; s=s+1;}
    b=b+b1;
    if (b>=60) {b=b-60; ++a;} }
     else{
     
     c=c+c1;
    if (c>=24){c=c-24; }
    d=d+d1;
    if (d>=60) {d=d-60; ++c;}}
    
    if (a==c  && b==d) break;
    
}
if(s>7) s=s%7;
    if (s==1) printf("subota");
     if (s==2) printf("nedjelja");
      if (s==3) printf("ponedjelja");
       if (s==4) printf("utorak");
        if (s==5) printf("srijeda");
         if (s==6) printf("cetvrtak");
          if (s==7) printf("petak");
          
   
       printf("\n%0.2d:%0.2d", a,b);
 
    
    return 0;
}