I want this in C: using Threads

Write a multi-thread program using IAVA THREADS which will prompt the user to enter on the command line the value of n (where n>0 ). Then each created thread will calculate the ip. num/factorial of 1 in a new list according to the following formula: f(x)=1110+2120+3!30+4!40++n!16ni=1,2,3,4 Upon successful threads completion, the parent thread should find the sum of each reported value reported by its child threads and output the final sum. The parent thread output: Enter your array size: 5 kach Thread's work: Thread 1=10.0 Thread 2=10. Thread 3=5.8 Thread 4=1,6666666666666667 Thread 5=1.4166666666666667 The sum of the series =27,68