N = int(input())
k2 = 0
k13 = 0
k26 = 0
s = 0
for i in range(N+1):
input(n)
if n % 26 ==0:
k26 += 1
elif k13 % ==0:
k13 +=1
elif k2 % ==0:
k2 +=1
s = k26 *(N-k26)+ k26 *(k26-1) +k2*k13
print(s)
TiA9IGludChpbnB1dCgpKQprMiA9IDAKazEzID0gMAprMjYgPSAwCnMgPSAwCmZvciBpIGluIHJhbmdlKE4rMSk6CglpbnB1dChuKQoJaWYgbiAlIDI2ID09MDoKCQlrMjYgKz0gMQoJZWxpZiBrMTMgJSA9PTA6CgkJazEzICs9MQoJZWxpZiBrMiAlID09MDoKCQlrMiArPTEKcyA9IGsyNiAqKE4tazI2KSsgazI2ICooazI2LTEpICtrMiprMTMKcHJpbnQocyk=
Traceback (most recent call last):
File "<string>", line 1, in <module>
File "/usr/lib/python2.7/py_compile.py", line 117, in compile
raise py_exc
py_compile.PyCompileError: File "prog.py", line 10
elif k13 % ==0:
^
SyntaxError: invalid syntax