Multiplication table function _

Implement a function to print the multiplication table,

#define _CRT_SECURE_NO_WARNINGS
#include<stdio.h>
#include<stdlib.h>
int Mul(int num){
	int pro = 1;
	for (int i = 1; i <= num; i++){
		for (int j = i; j <= num; j++){
			pro = i*j;
			printf("%d*%d=%d\t", i, j, pro);
		}
		printf("\n");
	}
}
int main(){
	int num;
	scanf("%d", &num);
	Mul(num);
	system("pause");
	return 0;
}