#include <stdio.h>

int main() {
	unsigned char buf[1024];
	size_t count, i;
	
	while( (count=fread(buf,1,1024,stdin)) ) {
		for(i=0;i<count;i++) buf[i] &= 0x7F;
		fwrite(buf,1,count,stdout);
	}
	
	return 0;
}