import sys
a=list(map(int,sys.stdin.readline().split()))
for i in range(a[0],a[1]+1):
if i % a[2] == 0:
print(i)
break
else:
print(-1)

import sys
a=list(map(int,sys.stdin.readline().split()))
for i in range(a[0],a[1]+1):
if i % a[2] == 0:
print(i)
break
else:
print(-1)