#include<stdio.h>
 
int main(void)
{
    char a[16]="abcdefh";
    char *b="ijk";
    int c=0;
    char d=0;
 
    while(*a!='\0'){
        printf("%c",*a);
        c++;
        *a=*(a+c);
        printf("  %s\n", a);
    }
    printf("文字列の長さは%d\n",c);
 
    *a='a';
    while(1){
        printf("%s\n", a);
        *(a+c)=*(b+d);
        c++;
        d++;
        if(*(b+d)=='\0'){
            break;
        }
    }
    printf("%s\n",a);
    return 0;
}

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