↩ 🔵 🔵 🔵 ❪֎₈ₛₜ❫ ﹤iostream﹥ Values ○ ❪֎₈ₑₛₜ❫ C++ Standard Library Variables ○ std∶∶cerr ⚬ᶜᵖᵖ std∶∶cin ⚬ᶜᵖᵖ std∶∶cout ⚬ᶜᵖᵖ