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#include <stdio.h>
#include <stdlib.h>

int main() {
    int n=1,i,j;
    int *ptr;
    
    ptr=(int*)malloc(n*sizeof(int));
    
    for(i=0;i<n;i++){  //n is very important here
        scanf("%d",ptr+i);// it only reads the values of input till ' '
    }
    
    for(j=0;j<n;j++){
        printf("%d",*(ptr+j));
    }
    
    free(ptr); 
    return 0;
}

#if 0

#include <stdio.h>
#include <stdlib.h>
#include <string.h>

int main() {
    int *a;
    a =(int*)malloc(10*sizeof(int));
    
    memset(a,0,10*sizeof(int));
    
    for(int i=0;i<10;i++){
        scanf("%1d",&a[i]);
    }
    
    for(int i=0;i<10;i++){
        printf("%d",a[i]);
    }
    free(a);
}

int main(){
    int *ptr;
    int n=1;
    
    ptr=(int*)malloc(n*sizeof(int));
    
    scanf("%d",ptr);
    printf("%d",*ptr);
}


char *ptr;
    
    ptr=(char*)malloc(n*sizeof(char));
    
    for(i=0;i<n;i++){
        scanf("%s",ptr+i);
    }
    
    for(j=0;j<n;j++){
        printf("%s",ptr+j);
    }
    
char *ptr;
    
    ptr=(char*)malloc(n*sizeof(char));
    
    for(i=0;i<n;i++){
        scanf("%c",ptr+i);
    }
    
    for(j=0;j<n;j++){
        printf("%c",*(ptr+j));
    }
#endif