#include<stdio.h>
#include<string.h>
#include<math.h>
#include<stdlib.h>
char ar[100000],st[100000];
int search(char ar[])
{
    if(!strcmp(ar,"monday"))
    return 1;
    if(!strcmp(ar,"tuesday"))
    return 2;
    if(!strcmp(ar,"wednesday"))
    return 3;
    if(!strcmp(ar,"thursday"))
    return 4;
    if(!strcmp(ar,"friday"))
    return 5;
    if(!strcmp(ar,"saturday"))
    return 6;
    if(!strcmp(ar,"sunday"))
    return 0;
}
int main()
{
    int i,t;
    scanf("%d",&t);
    while(t--)
    {
        int l,r,d;
        scanf("%s",&ar);
        scanf("%s",&st);
        scanf("%d %d",&l,&r);
        int a=search(ar);
        int b=search(st);
        d=b-a;
        if(d<0)
            d=d+7+1;
        else
            d=d+1;
    //   int d2=d+7;
           printf("\nd=%d,l= %d, r= %d, \n ",d,l,r);
        if(d>=l&&(d+7)>r)
            printf("\n%d",d);
        else if(d>=l&&(d+7)<=r)
            printf("\nmany");
         else
         printf("\nimpossible");

    }
    return 0;
}