#include <stdio.h>

int main (){
    int a, b;
    scanf("%d %d", &a, &b);

    for(int i = 1; i <= a; i++){
        for(int j = 1; j <= b; j++){
            printf("%d %d\n", i, j);
        }
    }
}

#include <stdio.h>

int main(){
    int x;
    scanf("%X", &x);

    for(int i = 1; i < 16; i++){
        printf("%X*%X=%X\n", x, i, x*i);
    }
    return 0;
}

#include <stdio.h>

int main(){
    int a;
    scanf("%d", &a);

    for(int i = 1; i <= a; i++){
        if(i % 3 == 0 || i % 6 == 0 || i % 9 ==0){
            printf("X ");
        }
        else{
            printf("%d ", i);
        }
    }
}

#include <stdio.h>

int main (){
    int r, g, b, count = 0;
    scanf("%d %d %d", &r, &g, &b);

    for(int i = 0; i < r; i++){
        for(int j = 0; j < g; j++){
            for(int k = 0; k < b; k++){
                printf("%d %d %d\n", i, j, k);
                count++;
            }
        }
    }
    printf("%d", count);
}

#include <stdio.h>

int main(){
    int h, b, c, s;
    double memory;
    scanf("%d %d %d %d", &h, &b, &c, &s);
    memory = ((double)h*(double)b*(double)c*(double)s)/8388608;
    printf("%0.1lf MB", memory);
}

#include <stdio.h>

int main(){
    int w, h, b;
    scanf("%d %d %d", &w, &h, &b);
    double result;
    result = ((double)w * (double)h * (double)b) / 8388608;
    printf("%0.2f MB", result);
}

#include <stdio.h>

int main(){
    int a, sum = 0;
    scanf("%d", &a);
    for (int i = 1; ; i++){
        sum += i;
        if(sum>=a){
            break;
        }
    }
    printf("%d", sum);
}

#include <stdio.h>

int main(){
    int a;
    scanf("%d", &a);

    for (int i = 1; i <= a; i++){
        if(i % 3 == 0){
            continue;
        }

        else printf("%d ", i);
    }
}

#include <stdio.h>

int main (){
    int a, d, n;
    scanf("%d %d %d", &a, &d, &n);
    printf("%d", a + (d*(n-1)));
}

#include <stdio.h>
#include <math.h>

int main(){
    long a, r, n;
    scanf("%ld %ld %ld", &a, &r, &n);

    printf("%ld", a * (long)pow(r,n-1));
}