#include <stdio.h>
int main() {
    int num, i, multiple;
    for (num = 1; num <= 20; num = num+1) {
        for (i=1;i<=10;i = i+1) {
            multiple = num*i;
            printf("%d x %d = %d\n", num, i, multiple);
        }
    }
    return 0;
}