Write a complete program that:$1.$ Uses a do$...$while loop to prompt the user to enter a count that is greater than $1$ and less than or equal to $20$ then readsin a count from the keyboard as an integer.a$.$ If input error occurs or the count the user enters is less than or equal to $1$ or greater than $20,$ output an error.After outputting an error, clear$/$ignore the failed input and continue do$...$while looping until a valid number isentered$\mathrm{.}2.$ Writes a triangle to the display using for loops. The triangle will be upside down. To write this triangle to the display:a$.$ amountOfStars $=$ number entered in $(1).$b$.$ Output amountOfStars followed by a new line.c$.$ Decrement amountOfStars by one.d$.$ Continue from $($b$)$ until amountOfStars is zero$\mathrm{.}3.$ Writes a triangle to the display using while loops. The triangle will be rightside up$.$ To write this triangle to the display:a$.$ amountOfStars $=1.$b$.$ Output amountOfStars followed by a new line.c$.$ Increment amountOfStars by one.d$.$ Continue from $($b$)$ until amountOfStars is greater than the number entered in $(1).$