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#include <stdio.h> int sum(int num1, int num2);/* function declaration */ void main () { int a = 100,b=12,result; result= sum(a, b); /* calling a function to get sum value */ printf( "Sum of two numbers value is : %d\n", result); } /* function returning the sum of two numbers */ int sum(int num1, int num2) { int sum=num1+num2; return sum; }