matriz=[
[7, 4, 3],
[2, 9, 1],
[3, 6, 4]
]
sumaFilas(matriz) # [14, 12, 13]
sumaColumnas(matriz) # [12, 19, 8]
sumarNumeros(11111); // 5
sumarNumeros(1230); // 6
sumarNumeros(1231); // 7
sumarNumeros(00); // 0
sumarNumeros(1); // 1
sumarValoresEntero(125) # 8
sumarValoresString(0) # 0
sumarValoresString("125") # exception
sumarValoresString(125) # 8
sumarValoresString("125") # 8
sumarValoresString("12a5") # 8
sumarValoresString("") # 0