s = "0123456789"
print(f"s: {s}")
print(f"len(s): {len(s)}")

print(f"s[0]: {s[0]}")
print(f"s[1]: {s[1]}")
print(f"s[5]: {s[5]}")
print(f"s[9]: {s[9]}")

print("""
try:
    print(f"s[10]: {s[10]}")
except IndexError:
    print("s[10] out of range")
""")
try:
    print(f"s[10]: {s[10]}")
except IndexError:
    print("s[10] out of range")

print()
print(f"s[1:3]: {s[1:3]}")  
print(f"s[1:]: {s[1:]}") 
print(f"s[:3]: {s[:3]}")
print(f"s[1:8:2]: {s[1:8:2]}")  
print(f"s[1::2]: {s[1::2]}")  
print(f"s[::2]: {s[::2]}")  
print(f"s[:7:2]: {s[:7:2]}")  
print(f"s[::-1]: {s[::-1]}")
print(f"s[::-2]: {s[::-2]}")
print(f"s[1:8:-1]: {s[1:8:-1]}")
print(f"s[8:1:-1]: {s[8:1:-1]}")
print(f"s[8:1:-3]: {s[8:1:-3]}")