#include <stdio.h>
#include <math.h>
 
int main() {
    int num1, num2;
    printf("1つ目: ");
    scanf ("%d",&num1);
    printf("2つ目: ");
    scanf ("%d",&num2);
 
    // num2の桁数を求める
    int temp = num2, digits = 0;
    if (temp == 0) {
        digits = 1;
    } else {
        while (temp != 0) {
            temp /= 10;
            digits++;
        }
    }
 
    // num1を10^digits倍してnum2を加える
    int result = num1 * (int)pow(10, digits) + num2;
 
    printf("%d",result);
    return 0;
}
 

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