#include<bits/stdc++.h>
using namespace std;
int main()
{
	int t;
	cin>>t;
	while(t--)
	{
		long long  hh,mm;
		char c;
		int x;
		cin>>hh>>c>>mm>>x;
	
		int nowh=hh;
		int nowm=mm;
		int ans=0;
		bool flag=1;
		while(1)
		{
			if(nowh==hh&&nowm==mm&&!flag)break;
			int panduan=nowh/10+nowh%10*10;
			if(panduan==nowm)ans++;
			nowm+=x;
			nowh+=nowm/60;
			nowm%=60;
			nowh%=24;
			
		}
		cout<<ans<<"\n";
	}
}