In C language

Name this program hextodec.c - Given a hexadecimal number, convert it to its decimal equivalent. This will be a hex number anywhere from 1 digit to 8 digits. A hex number is base 16, thus a single digit can be 0 through 9 or A through F, or 0 through 15 in decimal. For example, 4 digit hex numbers can represent numbers between 0x0000 to 0xFFFF which is 0 to 65,535. The operation will be performed similar to this: 0x1FCD = (1x16^3)+(15x16^2)+(12x16^1)+(13x16^0) = 8141.

 input: 1FCD output: The hex number 1FCD is equal to 8141 in base 10. 

Note: use the long datatype printed with %ld when calculating the base 10 value.