import java.util.*;
import java.lang.*;
import java.io.*;
/* Name of the class has to be "Main" only if the class is public. */
class time
{
int h,m,sec;
{ /*Scanner in = new Scanner(System.in);`
h=in.nextInt();
m= in.nextInt();
s=in.nextInt();*/
}
int calc_time(time t1,time t2)
{ return ((t2.h - t1.h)*3600 + (t2.m - t1.m)*60 + (t2.sec - t1.sec));
}
{
// your code goes here
time t = new time();
t.getdata();
time te = new time();
te.getdata();
time tt = new time();
int val = tt.calc_time(t,te);
if(val
>=0&&val
<=99) System.
out.
println("S"); else if(val
>99&&val
<=199) System.
out.
println("C"); else if(val
>199 && val
<=299) System.
out.
println("S"); else if(val
>299 && val
<=399) System.
out.
println("C");
}
}
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