s = "apluscompsci"
print( s[4] )
s = "apluscompsci"
print( len(s) )
s = "apluscompsci"
print( s[3:5] )
s = "apluscompsci"
print( s[:-3] )
s = "apluscompsci"
print( s.find("sc") )
s = "apluscompsci"
print( s.rfind("sc") )
s = "apluscompsci"
print( s[3] + s[5] )