#include <stdio.h>
#include <math.h>
#include <string.h>
int main(void) {
    printf("%.1f\n",pow(2, 3));
    printf("%.1f\n",sqrt(4));
    printf("%.1f\n",ceil(1.2));
    printf("%.1f\n",ceil(-1.2));
    printf("%.1f\n",floor(1.2));
    printf("%.1f\n",floor(-1.2));

    
    char a[100]="woman";
    printf("크기: %lu\n",strlen(a));

    
    char dest[] = "DLAB";
    char origin[] = "W09";
    printf("결과 : %s\n", strcat(dest,origin));

    
    char A[] = "AA";
    char B[] = "AA";
    char C[]="BB";
    printf("A와 B 비교 : %d\n", strcmp(A,B));
    printf("A와 C 비교 : %d\n", strcmp(C,A));
    printf("A와 C 비교 : %d\n", strcmp(A,C));


    char str1[100];
    char str2[100];
    scanf("%s %s", str1, str2);
    printf("%lu %lu\n", strlen(str1), strlen(str2));
    printf("%s\n", strcat(str1,str2));
    printf("%d\n", strcmp(str1, str2));
    
    return 0;
}