//en.cppreference.com/w/c/language/operator_assignment.html
#include <stdio.h>
int main(void)
{
int x = 10;
int hundred = 100;
int ten = 10;
int fifty = 50;
printf("%d %d %d %d\n", x, hundred, ten, fifty);
hundred *= x;
ten /= x;
fifty %= x;
printf("%d %d %d %d\n", x, hundred, ten, fifty);
return 0;
}