#include <stdio.h>
#include <stdlib.h>
 
int mystrlen(char* str){
	int i, cnt = 0;
	for (i = 0; str[i] != '\0'; i++) {
		cnt++;
	}
	return cnt;
}
 
int main(void) {
	char tmp[32];
	char *repstr;
	int i, j, n, length;
    scanf("%s %d", tmp, &n);
 
	length = mystrlen(tmp);
 
	/* TODO：「repstr」の動的メモリ確保 */
	for (i=0;i<n;i++){
		for (j=0;j<length;j++){
			/* TODO：「tmp」の中身を繰り返し代入する処理 */
		}
	}
	repstr[n*length]='\0';
 
	printf("%s", repstr);
 
	free(repstr);
 
	return 0;
}
 

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aG9nZSAy

hoge 2